Here's something to focus your research.
Off the top of my head, for XBox, I'd recommend Morrowind(I know, I know) and Fable. They're not like KotOR at all but the button mashing is relatively limited.
Or, get yourself a PC or, if you're low on funds, a PS2 and try to enjoy some good JRPGs.
KotORs are unique so to get that same experience we'll just have to wait for #3 or maybe Mass Effect. Or, if we're lucky, Obsidian will port NWN2 to X360?