I've got one of these... http://www.zzounds.com/item--BEHPMX2000
which in my opinion is the steal of the decade. I use for my keyboard rig, band pa, rehearsal, it's been on 300+ gigs over 3 years and works like the day I got it. What is so great about this head is it's (3) Stereo inputs. (4) if you count the RCA jacks.

I use this with Peavey PR15's for larger gigs and DJ jobs, and PR10's for keyboard gigs.