I would recammend staying away from liquid cooling. A good liquid setup is gonna run you atleast $200. A good air cooling system will work just as good as a cheap liquid setup and is way more reliable.
if you really want to do it for overclocking/space then I'd recommend checking out one of the overclockers sites or... www.tweaktown.com or www.coolitsystems.com for an idea. but if it's for noise you'll still need fans to cool down the watersupply
thermaltake element v nvidia edition a good case for 220$ and 170$ for the element V it's liquid cooling capable and good price
and 3D galaxy II from my beloved Gigabyte (i love this company, very decent and respectful) to chill out my cpu and gpu (planning to have liquid cooled version of the 480)
and for a price of 125$ i get myself a good Kit