Well, I've found much cheaper options than the JL amp (of course), two that have stuck out so far have been the Avionixx (which Miles also recommended back when I was looking at a somewhat different plan for a system) 400.2, running one for the fronts and one bridged for the sub, which would end up at 380 dollars from edesign themselves, compared to 510 for an ebay 450/4. Another amp company I looked at was US Acoustics, where I could get 2 amps that more than meet my needs spec-wise for something like 250 dollars (frontssub). I've read some bad things about them along with the good, though, and they're not nearly as flexible or nifty as the JL, plus, with two amps of typical weight, I'm pushing 30 pounds and I want to keep the total system weight at 50 lbs, a goal that will be hard with one amp's weight along with the sub/enclosure, and wiring. I'm willing to spend more than 250 on the amp setup, too, so I'd like to go more upscale than that.

I think the biggest help I could get at this point would be some links to good audio boards with good search features, and any brands you would shy away from or brands you like. I've been searching at caraudio.com's board, I tried another board (forgot url) that had a crappy search feature and dumped it, and I may have stumbled across another board or two that I've forgotten about. I've got a while to decide on the sub and amp, so I've got time to research.