For my birthday, im gonna get a PSP, but psp vita is comin out in december, so, should i get psp 3000, or wait?

Depending on what you want to do with it. I would wait and get the psp vita its going to have have a dual core processor the games are going to have to be one bad mama jamma. :) And it's going to have wifi (dont know if psp 3k has wifi or not).