I don't have more than 1 DS. I used to have my friends', but he took it back after a few weeks. I could give you my Magneton if you'd be willing to evolve it for me. If you traded me a Probopass, I could breed it for the Nosepass and then give it back. And I will need a Pachirisu.
So, we could do it this way:
You give me Probopass, and I give you Magneton. You go off and evolve him, and I run off and breed the Probopass. We trade both back. You give me Pachirisu and I give you an Eevee. You evolve the Eevee into Glaceon. You trade me the Glaceon, and I give you one of the Pokemon on your list (like Torchic). Then, as extra thanks, I can give you a bunch of Pokemon you need in exchange for whatever crappy Pokemon you have just lying around.
Tomorrow should be great. One quick thing, though: I'm leaving my house for a BBQ at 4 p.m., then going to a movie at like 7:15, so I might not be home until later. An earlier-in-the-day trade would be best, I'm betting, unless you plan on staying up late. Whatever works for you, seriously. I'm the one begging for Pokemon! :-D