Yeah, Headfi is a good site. They are a fun and helpful group although they are stuck on hifi questions that are mostly taken for granted by me and standard hifi circles. There you can get a notion of the relative tonal balances between headphones in your price range.
I blindly purchased beyer dt880s for $300 at headroom (good cust service) and have really enjoyed them. Very comfortable. Its true they are a touch quiet with drums and beats, but bass guitar is quite tuneful. They have some high end emphasis, but they are not fatiguing to me. Better for me than dark sounding gear, which is why i bought them instead of Senn 650s.
Good luck, 'phones are phun.