The Golden State player I covet is Beidrins, not Ellis.
I would LOVE to have Biedrins, but I don't think they are giving up on him anytime soon and this trade would have to include Perk to get him, which is then dismantling our team.
As for Ellis vs. Ray, I agree that the scoring numbers would be similar if Ray was in GS, but I like Ellis' assists, rebounds, and steals over Ray's. Again, I don't think that he necessarily brings the 'intangibles' that Ray does, but it has to be something you think about...