Recreating Jarvis-has anyone tried this?

Right now I am using a basic command prompt-style thing from sourceforge. Apart from the fact it calls me sir (don't get me started on why this ticks me off...and I can't change it either...) and has a limited range of commands/personalization it's pretty cool.

Which got me wondering. Is there anyone here who knows of other JARVIS-like (AI) programs? I heard about he guy who put something together, but he has a mac and I don't (nor do I want or need one. I respect apple but I'll keep windows thanks....especially since win 7 was a great way to atone for vista).
Budget is a little limited, so cheap is good...free is better.

 

Admin: can you move this to "misc tech"?