Ok, so I'm trying to get at least one form of each pokemon before the new game comes out, which is probably not going to happen, but after a lifetime of trying to catch them all I'm only like 60 away, which isn't bad if you ask me, unfortunately I can't afford White 2 and the new game when it comes out which has put me in a bit of a bind. So... here is a list of what I need. I'm still working on White, so my Gen V list will hopefully shorten. I can trade anything breedable that isn't on the list, and I'm stacked with dittos so I can probably get any nature you want with a little work.
Regice, Regirock, Registeel, Jirachi, Deoxys
regigas, manaphy, shaymin, arceus
Victini, Tornadus, Kyurem, Keldeo, Meloetta, Genesect Reshiram