Ross definitely has an effeminate voice. Then again, he always has - even in high school he talked like a drama queen.

I used to compete against him in debate and several of my friends were in a drama club with him (Skagit Players).

He went to high school a few miles away from me. When I first saw him on Leno (Oceans 11 Premiere), my girlfriend and I were surprised as hell.
I don't know if he is gay or not. Definitely effeminate, though.
Rob