Computer Reboots after installing any PCIe Wireless network card

First I'll start with system specs

Board - Intel DG33TL
CPU - Core 2 Quad Q6600
600w Antec PSU
9600 GT GPU

Issue - Having a problem with currently USB wireless adapter - So decided to make the switch to a new PCIe Wireless card - I've tried 3 different cards. Linksys/Cisco, Belkin, and Buffalo. I tested all 3 cards in another machine before returning them to the local shop and they worked fine there. I go through the standard steps to install the cards, and as soon as I power on the PC it starts a reboot loop. On for a couple seconds, then reboot, never stops. Pull power and take out card, Clean boot up like nothing was wrong. Reinstall card - disconnect all but essentials and same thing.

At first I thought this was a problem with the PCIe Slot on the MB and I was able to get Intel to RMA my board directly since I did buy it direct from them. I get the new board. Same issue...

SO.. Anyone familar with this issue or an issue like it? Any advice would be great, Otherwise I'll stick to USB if i have to but I'd rather get a better performance boost from an internal card..