Not sure what I need to purchase?

[maxaud]

:P I won't answer to every question since a lot of people did already.

But I am wondering, why don't you play on the PC all the time, and she has the PS3 (since that was the plan from the start) you can always get a controller for the computer if that is the main reason why you would play on the PS3.

This way, you only need to buy 1 PS3 version (for your wife) and the PC one for you

I already use a PS3 gamepad while I play on the PC and it works well but I'll want to game from the couch every once in a while rather than my desktop.