i have a pritty big ass case so dont worry about size modding to an exstant just dont want to get my componets wet
exspasly since i just built a intel core 2 duo e6600 nvidia 680i mother bord 2 gig of ram and a 8800gtx graphics card
A kit would be the easiest way to get into water cooling. It will come with everything you'll need with complete installation instructions. There is a nice selection of Swiftech and Thermaltake water cooling kits here, CrazyPC.com.
thermaltake is a big no on when watercooling. Check here: http://www.petrastechshop.com/wacoki.html
Those are basically "kits" but they use custom parts. Petra's Tech just sells them as a kit. Those are the best "kits" that i've seen on the market so far. As long as you leak test, you should be fine.