Anyone here have any experience with installing a ATI Radeon X1900 GT Mac Edition Video Card into their Mac. I found a pretty good deal on NewEgg for one which was about $40 off the Apple store price. When I was reading the reviews everyone who posted said it was a great card they also mentioned, however, that the installation wasnt just snap one out snap the other in. I was wondering if anyone had worked with this card or similar cards and if the installation was reallly all that difficult.