Another 13-year-old!
Nice trick, but it goes on a bit too long for what it does (IMHO). You also hesitate before the sleights, and the one where you take the second card is a bit too much...why not try a DL by rearranging the trick a bit? Have a look at
http://www.katriel.co.uk/Transpo.wmv for a stripped-down video of this trick that I just made o_0. Don't worry, mine's not perfect by a long shot.
You should probably also learn some basic sleights (DL, fan, cull maybe), and for this I highly recommend Oz's Born To Perform Card Magic. You can get it from Penguin for $30 (about £15). I own it, and it's probably been the one thing that made me want to be a cardician. You learn everything from pinkie breaks to trinary cuts to the classic pass. You also get 4 routines: a tranposition like this one, a two card monte, an ambitious card, and the Biddle trick (card jumps to the middle of the pack face up). Everything is taught clearly and concisely.
Kati