i want to build a definitive (???) gaming pc, but with so many videocards i really don't know what to buy.
i read hundreds reviews and benchmarks but they usually don't specify the size of those videocards, and my main problem is not the heat or the noise (everything will be cooled by liquid) but the size and if exists a water block for that videocard.

my case is a Zalman HD160XT and, as written on the manual, it's compatible with "Full Size PCI Card"; I don't know what's the meaning but i think around 24-25cm.

let me add that i'm currently in corea so some cards are difficult to find or they have different price then expected (korean shoping site).
I'll write down some prices just to give a rough idea and hoping that you can help me to choose the right one for my rig.

GTX460 768MB (675mhz-700mhz) = from 200,000W to 230,000W (180US$ - 206$)
GTX460 1GB (700mhz - 750mhz) = from 240,000W to 270,000W (215US$ - 240US$)
GTX460 1GB (760 mhz - 840 mhz) = from 280,000W to 320,000W (250$ - 290$)
GTX460 2GB (700 mhz) = 320,000W (290US$) link

GTX465 1GB 608MHZ = 270,000W (240US$)

GTX470 1.2GB 607MHz = 350,000W (315US$)
GTX470 1.2GB 625MHz = 390,000W (350US$) link link2

HD6850 1GB 775MHZ = around 260,000W (235US$)

HD6870 1GB 900MHZ = around 330,000W (300US$)


what's the more convenient solution? a 6850 crossfire or a gtx465 sli or a single 6870 (...i'm not sure 6870 will fit in the case) ?
Do you know a particular model of 6870 or gtx470 shorter and where is applicable a waterblock?


thx a lot for all suggestion that you can give me.