I am thinking of getting an X1800XL, because I have seen some impressive overclock results on these forums, and I have a few questions. First of all, which one should I get? Currently, there are two of them on newegg. One by ATI and one by saphire. The one by saphire is $389 and the one by ATI is $429, but they both have the exact same specs and accessories. Would there be an OCing difference between the two? Also, I hear they have pretty good stock coolers to begin with, I already own a VF700-Cu fo my 6800GT, which I could put on the X1800XL. Would it be better than the stock cooler? Also, can you provide me with links with the best tools and drivers you use for OCing? Thanks.