I'm about a click away from ordering the following. QSC RMX1450 Power Amp Tech 21 SansAmp RBI Preamp (2) Aguilar GS112 Cabs Does that look like a good setup? Any recommended changes or anything? Will that work well? I don't know a great deal about the pre/power amp setup, but I've noticed there aren't a lot of amps in my price range that seem appealing. Also, would the standard 1/4" speaker cables work in this situation? Or would I need a different kind (speakon, other?) Thanks for the input.