I have had both Vandy 2s and 3s and powered them with VTL Compact 100s and DeLuxe 120s with great results, and I like to rock. I also have run the 3s on Parasound JC-1s and they sounded great, but I don't think it was as much the additional power, just better amps. I would look at 100wpc as a minimum for me, but all watts are not created equal and listening preferences and rooms vary.
Good luck!
Joe
Good luck!
Joe