Any free single player hold'em programs?

[JoostyJuice]

Hi, my names Justin and this is my first time posting Im at college and my campus is behind a firewall which basically prohibits me from playing any of the online poker rooms. I get together with some friends and play a tourney here and there across campus. I'd like to be able to play a few hands against computer opponents to practice. If anyone knows a free program I can use it would be greatly appreciated. Reading about it and studying pot odds only goes so far Thanks in advance!

[Nut Flush]

Im at college and my campus is behind a firewall....

Make friends with the IT guy :D