I've never played Fallout: Brotherhood of Steel. I'm not really aching to, either; copies for the Playstation 2 run upwards of $100 to $200. I don't have that kind of money.
From what I understand, the game is...not good, anyway. Sadly enough, it's the only one where you get to play a named ghoul character, this sexy beast, Cain.
I bought Realistic Paint Studio on sale a while ago, and he was my test subject. It's a pretty fun toy so far, I gotta say.