I'm wanting to upgrade my current ASUS EN8600GTS card to something a bit more powerful but I'm having to working with a mATX case, Apevia X-QP 2. That being the case(no pun intended) I have about 5mm(1/8 in) H and 1-2 in L extra to work with. PSU is directly above PCI-E. Does anyone know a video card with more than 256mb that is about the size of the ASUS 8600GTS ? Nvidia is prefered but if ATI is more sympathetic to my situation I would gladly give them a go. Links with exact dimensions would be nice or just tell me how much of a difference there is. Thanks.