Multiple wifi cards

Hey everyone.

This isn't so much of a problem as it is just screwing around....

I have a laptop with two wireless cards, a TrueMobile 1150 and an Edimax (rt73). When I am on campus, I can connect to any of a dozen access points from one location, since the AP's from each room and building overlap as not to leave dead spots.

If I happen to be downloading/uploading a large file, is there a way I can connect to two AP's at the same time to basically double my bandwidth? I can connect to two different networks, obviously, but can I make them work together to get the job done faster?

Thanks guys, you are all so very knowledgeable!