Hello all. I am a new member here and I need a few recommendations. First of all, my current band just added keyboard/synth running out of it's own 100W amp, and a beefed up PA for vocals. This is in addition to 1/sometimes 2 guitars @ 100W and drums. I have been using my old trace elliot 1215smx 15" combo. I think it is right around 280W or something like that. I would like to be able to cut through without cranking the amp so high(with the EQ engaged, I lose some punch and volume). I have been looking at GK stuff, since tube amps with the power that I am looking for seem to be a little out of my price range (ie. SWR, Mesa). I am thinking 700 rb II (480W @ 4ohm) or 1001 rb II (700W @ 4ohm). 1)Would I be best to go with a 2x12 or a 4x10? 2)Should I go the route of a 2X10 plus 1x15? 2b)If so, which should I get first ($$ is an issue) 3)Would it just be a better idea to get a pre/poweramp/cabinet setup. finally... 4)Which, if any, of these items (head/pre/power/cab) would it be ok to buy used? Thanks and sorry about the "quiz" format. I am a high school teacher, what can I say?