I'm in the same boat as you and I've been considering the Power Acoustik Class D amps (A1800DB or A2400DB) or even a Profile refurb amp since they're really cheap. Anyways, if anyone else has any suggestions, let us know.
Well I think I'm going to go with the infinity 610a (657rms @2ohms) for my sub and the 7541a (111x4) for my comps. I can get both brand new for right around $200shipped each and I have read some stuff about Infinity being made by the same people as JBL and everyone seems to love their amps. Well unless anyone has some terrible experiences with these thats my decision so far. Thanks again.