I've never heard the term Goa before, but I like Infected Mushroom.
Rabbit in the Moon
Those are all big names, as far as I know. Some of their stuff probably qualifies more as normal trance than psytrance, but some of BT's stuff is more psytranceish. Rabbit in the Moon I think is definitely Psytrance. I'm not really into this genre much anymore, so I don't know most of the newer artists.
Also see Lotus. They combine a lot of elements of trance with rock, jazz, and funk to create a very mellow kind of jam.
Heard of them before @Texas Faggott. If I go on with my youtubing career, I have seen em all really soon .
GOA is a region in india, this music style originated from there. There are lovely festivals with the taste of woodstock freedom. Only problem is in india there are about 300.000 cases of hydrophobia a year, cause there are a lot of stray dogs. I would have been there by the time, if it wasnt for that .