I bought a logitech wireless controller to do just this. Of course I gave up on SNGs a week later, but it was god damn sexy to use. One button for push, one for fold, one for 3x BB raise, one for half-pot bet, one for call. Pretty much all you need, and you can lean back in your chair and play it like a video game.

I have two Logitech controllers, but am currently playing on FTP clearing their HUGE bonus. I wish I could find an AHK script for my controller on FTP.

I read about the PokerStars one and I think it mentioned it only allows a maximum of 4-tables. Is this true?

i *think* so, but if that's true, there are ways to work around and increase this because i'd managed to work mine for 8-tables.