I've gone though my second 8800GT :-(

I'm wondering if there's a good alternative that will run two monitors. I've heard a lot about PC Cards having their ROM's flashed to work with MacPro's 2008 onwards, so would like to know a little more about this (given the cost of the Apple cards).

So is there a viable alternative for my 8800GT, either Mac based or something that can flash.

How do you go about flashing the PC cards?

Many thanks