Need some $500 & under Amp recommendations

Hey,

I wanted to get some opinions this if I could...

I picked up a new pair of Paradigm Atoms v5 and am looking for a good integrated or amp/pre combo to match. My budget is limited to $500 or under.

What I am looking for is whatever would give me the absolute cleanest sound I could get in that price range. I don't need a lot of power as the Atoms are efficient little speakers.

I am open to anything... tubes or solid, integrated or seperates, used or new... I have already done quite a bit of research... at this point my money is on a Nad C325BEE.

I do realize that with sound gear, one thing sounding 'better' than another is largely subjective. Yet, I would still like some opinions to help, especially since I haven't the resources to test a bunch of equipment before buying. I just want to make sure I didn't miss something in my research and that there is a majority opinion of "Oh, well obviously the Turbo Sonic Medulla Stimulator is vastly superior to the NAD C325BEE."

Thanks for the help everyone!