I'm definitely starting fresh with SoulSilver. I have traded sets of Lv. 5 starters over to my Ruby and Emerald games after I beat Sapphire, but all my other games I've used Pokemon that I catch in-game to beat the Elite Four. I just feel that trading over powerful Pokemon to beat up gyms and the Elite Four takes so much of the challenge and fun out of the game. Right now I've got an in-game team planned with some Pokemon that I love but have never used for main gameplay before, so I'm really excited about starting fresh. After I beat the Elite Four, I'll probably trade over some Pokemon from my Diamond and Platinum games for Pokedex and breeding purposes, but I do all of my competitive battling out of my Platinum game. It's got good move tutors and access to high-level trainers for level-grinding after I EV train, and it's compatible with Pokemon Battle Revolution. If SoulSilver is compatible is PBR, then I may reconsider. Other than that, I'll do most of my breeding on Diamond because I can send the extras over to Pokemon Ranch on the Wii so I don't have to release them (I'm trying to get to 1000 so I can trade for a Mew). I'll use SoulSilver for IV breeding, Egg Move breeding, and Move Tutors primarily.