June 6, 2012 11:36 PM EDT
Unfortunately that's not easy. I've played a number of console games, and those can be next to impossible to mod. You don't have the kind of access to the software you do in a PC.
As for your computer being unable to run Skyrim, what does it need? I'm an IT guy, maybe I can help you figure it out and direct you to best deals on hardware if you need that.