Bootcamp running PC games

You cannot install Windows using Boot Camp without a Windows OS Disk. What you can do, however, is download a disk image then burn that to a disk and use that with Bootcamp.
Your other option, is you're just going to use Windows occassionally is use a virtual computer through Parallels or VM Ware.

 

Or stop being cheap and just go buy windows 7.

Yeah yeah it's expensive, find it on sale somewhere and it'll be less than the cost of 2 games. Or buy an OEM copy for even less. I'm sure down the road you'll have more to play than Just Cause 2 and it's good to have a legitimate copy of Windows in case you run into any issues down the road.

 

If it was a fast laptop, you could extract it, but if it's a slow laptop you can't.

Just kidding, you need a retail windows 7 dvd and license.