I just got an MSI NX8800GTS HD OC 640Mb graphics card. I have heard that 8800 cards are good overclockers and i am assuming they can be overclocked far beyond what mine is. In fact there is an XFX card woth a core clock of 650MHz and Memory at 1900MHz and it appears to have stock cooling. My card is currently at 575 MHz Core and 1700MHz Memory. I want to overclock my card as far as it will safely go with stock cooling. I have heard that you can get quite close to stock GTX performance and that would be nice. But i am still unsure about what clocks are safe and i dont want to just max ou the sliders and cross my fingers. I was wondering if anybody could give me some safe clocks or at least give me some tips to figure it out. Thanks.