[airspirit]

Since you can get an outstanding full tower/server case at Newegg for 63 shipped (Chieftec DA-01) and you can get a BIXr2 for $60, a good 1/2" waterblock for $30-40 and a MUCH better pump for $50, plus you can arrange it any which way you want, you be the judge. I'd personally go with a higher quality (and I'm talking HUGE quality gap) system than one with mediocre/cheeseball cooling equipment in a pretty case for MUCH MORE money. You'd be hard pressed to find anyone here that'll tell you otherwise. The only reason you should get a preassembled kit is if the following ALL apply:

1) You don't plan on overclocking much (if I remember, most koolance kits run 1/4" hose, and I've never seen one with over 3/8" ... combine that with a weak pump and you won't get very good cooling). You can possibly, depending on your situation, do better with air-cooling.

2) You have no experience messing with computers and don't want to learn OR you have no mechanical skills (i.e., you're likely to poke your eye out if you are in the same room as a screwdriver). It doesn't take a genius to learn how to hook these things up in an effective matter, and for many basic case mods, a trained chimp can dremel out a blowhole (I did it, if that tells you anything, and it was my first time picking up a dremel).

3) You have money to burn and all you want to watercool for is for bragging rights and a pretty PC.

4) You don't mind people getting rich off of you while providing you with a piece of crap prebuilt watercooling kit that cost them will under half of the selling cost.

5) Your father was a hamster.

As I suspect from the fact that you are here that these don't all apply, I'd build one yourself. Read the forum to get a bearing on what equipment does best for people and start finding recommended suppliers to purchase from. Before assembly, read the theory topics to get an idea of what order to place your components in, lapping qualities, and other recommended practices (though most of these are debated fiercely). When you feel that you can assemble this in your sleep, go for it and remember that the assembly is most of the fun. If watercooling is a source of geek bragging rights, being able to assemble your own kit brings the prestige to a whole new level (what a bunch of bull, huh?).

I would recommend you move cautiously and avoid kits like the plague. Take your time researching and building your system and you'll be much happier with it.

edit: I can't spell.