I'm not a fan of huge PA systems either, thanks but I have a hernia already...
Board, mains, monitors and a couple of good power amps, you're set. But there is something to be said for those big Peavey speakers...as much as I hate to lug them in they do sound great, then again the newer wedge shaped ones are sounding pretty good too. Friday night we used some EV speakers that were big but not as big as the okld Peaveys, and a powered mixer, it did the job pretty well but no monitors made vocals a bit tricky. I've never been a big fan of powered mixers, but some of the newer ones are getting a lot better it seems.
I also have settled on a 45 watt Super Reverb for the guitar amp, I just set the volume of the Peavey (30/130 watts) to match it, that one's for clean so I don't need it cranked. the Super Reverb makes a great amp, it's too loud in small clubs, so I have to keep it down a little but in a decent size place with any people it works perfectr cranked to 10 and if I need more I can mic it. It also acts as a master volume for the whole band, if you can't hear that amp you need to turn down. Full tilt with everyone set so the Super Reverb is on top (for leads anyway) it's not too loud for most clubs.
In two guitar bands, put the guitars on opposite sides of the stage, or they'll be fighting to hear themselves all night, you'll end up way loud. You'll end up loud anyway, guitar players are notorious for playing too loud. Myself included, I'm guilty and don't deny it but I try and keep it bearable...
Howlin you're another one that I wish weren't a 15 hour drive away. Keyboard players aren't easy to find to begin with, and the only one I've worked with around here carried a half pint in his back pocket and the first thing he always did was interrupt me while I was unloading my rig to try and bum a joint...after I told him a dozen times I don't drink or smoke when I play and don't bring any with me...he was the one that stood there and watched while we unloaded/loaded equipment, I had to get pissed and tell him he BETTER bring his own amp inside when I was unloading the trailer and it was in my way. First two times I told him to take his amp inside he stood there 6 feet away and ignored me. He also kept his amp as close to his ear as he could get it, which meant it was so low we couldn't hear him at all, which was fine with me after he took about a half dozen chugs off the bottle, he played sloppy to begin with, by the second set he couldn't play at all.
So yeah, I wish some of these guys with some experience, integrity and common sense were a bit closer than a two day drive...
I'm also big on the performance part too, I hate to see people stand there looking bored, especially the older guys with beer guts...they're always the ones in sloppy t-shirts it seems too. If you don't care what you look like, I won't take your band seriously and will be much more critical of the sound itself than with a band that shows up dressed to entertain. Look at the aaudience now and then, just over their heads works well, everyone thinks you're looking at them. Interact with the audience, pull a (clean please) joke now and then, or a good one liner, especially if you can tag one on a comment from the audience. Someone yells for a really common song I'll say "Who said that?...Go to your room" and make sure everyone knows I'm joking. We'll probably play it a couple of songs later but I don't let them know that...
Take no longer than 15 seconds between songs. I can change guitars in 10 seconds, so don't wait for me, make a quick comment and I'm ready to go. If you take more than 30 seconds you're losing their attention. It's hard to get it back. Use a song list and stick to it. If someone has a request, replace it with another song and make sure it doesn't throw the timing of your set off. Don't play another slow one just because it was requested when it's time to pick up the pace. Wait a song or three and play it when it's time for another slow one.
Nobody onstage but band members. A former band leader's wife would wander up onstage and dance behind him during a few songs, it drove me crazy. Not only was she usually half plastered, she wasn't much of a dancer and it looked almost as bad as the lyric sheets he kept on a stand in front of him. If you're too lazy to memorize the lyrics, you don't need to be a singer. Fortunately he didn't drink and was an excellent bass player, but his wife just about drove me out of the band. In addition to getting onstage where she didn't belong she was an obnoxious drunk and several clubs didn't like hiring us because of her mouth. In the end he couldn't book anywhere locally and had to go elsewhere...and that's only the beginning of that story...it got lots worse.
Great thread whoever it was that posted the thing, some really good ideas here for getting the sound and stage setup dialed in. Sorry if I rant a little, some or most of this should be common sense and I've seen far too many musicians who never even considered some of the finer points that make a band look good or bad, both visually and musically. I'm even picky about the placement of everything onstage, and careful to make sure all my wires are duct taped to the floor in one neat bundle going straight to my amps. Extra wire is rolled up and tucked under or behind the amps. Wire bags and guitar cases go back out to the truck till it's time to load up. When I switched to a 7 guitar stand, sax stand, lap steel on a keyboard stand and dual amp rig I set it up every way I could and took pictures, just to see what looked best and neatest onstage. I don't bring the lap steel any more, it's an antique and I don't want it beat around by drunk musicians.