I am driving my Rev 2's with an Arcam Alpha 10P power amp with very satisfying results.. If you need an integrated the FMJ A22 or A32 should work fine (same power rating)unless you need head-bangin' concert-level performance in a huge room (The Arcam can actually handle that pretty well, too). You could find a used FMJ for well within your budget. Although rated at "only" 100WPC, these amps have plenty of current to drive these speakers very nicely.
If you need more power, a friend of mine who owns the Rev 3's drives his with a Proceed AMP 2 (separate power amp) and they ROCK! The only problem for you will be finding one used if you want to consider separates... -JZ
If you need more power, a friend of mine who owns the Rev 3's drives his with a Proceed AMP 2 (separate power amp) and they ROCK! The only problem for you will be finding one used if you want to consider separates... -JZ