I'm running a Pioneer Premier HU, with Memphis M-Class 6.5" components in the front and Memphis M-Class 6x9's in the rear. My bass is a Kicker SX650.1 and two Kicker Comp-VR 10's. I'm not running a highs amp (yet).

About your first post, at first I thought I didn't need rear speakers either, since I figured they'd get drowned out by the subs. I got bored and did them anyway...it does make a huge difference. I have it slightly faded to the rear, and it sounds great. I strongly recommend it. Eventually I'd like to move the rear speakers from the back hatch to the back doors, as I know that's going to really make them sound a lot better. Just my 2 cents though, now that I have the rear speakers, I don't think I'd enjoy it as much without them.