I was crunching some numbers and wanted to get some opinions. When building an E1705 with the same specs as an M1710, I noticed a significant price difference. I found, going through the epp site with a 3 year warranty, that I could get the E1705 for $1,936 (with an itegrated graphics card) and assuming the Nvidia Geforce Go 7900GTX is about $530, would bring it to $2,666. Alternatively, the XPS M1710 of equal setup would be $3,611. So it looks like I could save $1,000 by putting the graphics card in myself. But then there's the issue of voiding the warranty on the E1705 and whether or not I could even put a 7900GTX in it. (By the way, does anyone know where I could buy one? Notebook graphics cards seem impossible to find). So does this seem worth while? I really want the top-notch graphics card, because I want this system to last. Right now, I'm just planning on getting an M1710 through a power seller on e-bay once they're up on e-bay. Any thoughts/alternatives would be appreciated. Thanks in advance.