Budget amps.

What preamp and speakers are you using?

If you're patient, you might find a used Outlaw in your price range, but if you want something now, look at Parasound and Rotel. They offer a great bang for the buck. The 140 watt Parasound HCA-1205A might not reach your 150 mark, but Parasound amps are overachievers with their massive power supplies and high current design.

I don't know anything about Emotiva.

Look into the Behringer 500 units. Plenty of power, good value.

Emotiva has cheap gear.

OK, now we have ATI, Emotiva, Parasound and Behringer. I think you are right mingles, 140 should be close enough. Taking a quick look through the used equipment, my choices are limited. The parasound seems to have the largest selection to choose from. I didn't see anything for Behringer, but isn't the 500 a 2 channel amp? I need 5 channels. There doesn't seem to be but one ATI and it will probably be out of my price range once the auction gets to the end. So today we are looking at Emotiva XPA-5($800 new) or a used Parasound HCA-1205A. Does anyone have experience with either of these 2?