OK, so I'd like to buy a GTX 260 to put in my early 2008 mac pro to do some gaming. What I'd like to know is: do I leave it as well as my 8800 gt connected all the time and do I remove the 8800 GT from the board and put the 260 GTX eveery time I switch to windows for gaming? Also, what extra cables do I need to buy for connection? I'd really like to order everything all at once so that once I get my card I can get it running right away. Thanks!