Save you money, and build your own! i wish i had after i bought a Asetek waterchill kit. I have only just started building my own and i have learnt a hell of a lot over the past few weeks, and i am so glad i did. i am confident that i could make a computer, design, implement and test a w/c system in under 3 days with the experiance i have gained since December.
just jump in at the deep end, trust me, you will learn to swim a heck of a lot quicker if your feet cant touch the floor