Btw, I've got a valuable reservoir of Pokemon in my Gen 4 Heart Gold game.
As you know, one can't trade with Gen 4 before beating the Elite 4, so I'm not able to send any over yet but once I am able to, are there any Gen 4 or earlier Pokemon you're looking for?
Just to name a few, I could give you Deoxys, Manaphy, Lugia, Ho-oh, Mewtwo, all the starters up to the Sinnoh set and many more.
Let me know if you need anything. I'm pretty sure I'll beat Pokemon White soon. I'm planning on getting the new Pokemon Black 2 so I'll probably be done by the time it comes out.