dude firstly your prices are on the lower side as o newegg.
also,see any site and comapre 6600gt with x800xl,then talk.
also,x800 shud be 240>
g6600gt , 169>
xfx gfor abt 182-183 etc
geforce6800 must be higher
XFX Geforce 6600 GT is for 159$
http://www.newegg.com/Product/Product.asp?Item=N82E16814150080
Sapphire X800 for 200$ coming in sometime
http://www.newegg.com/Product/Product.asp?Item=N82E16814102529
EVGA Geforce 6800 for 200$
http://www.newegg.com/Product/Product.asp?Item=N82E16814150068
And X800XL is faster then a 6600GT in Doom 3
http://www.techreport.com/reviews/2005q1/geforce6600gt-sli/index.x?pg=4
Sometimes mate, just think and read a lil before spamming.
check xbitlabs.com/articles/video
see review of winfast 6600gt
exactly la Aces, no point in arguing with this guy, avoid his posts, thats it, there are other noobs (ahem.. like me 
) who wud appretitate ur work and what u say, bt not this guy.. he is like those Sardar jokes in action..
walkin talkin joke .
Mods delete my post if needed 
eace:
Haha! Post deleted!