$250 will get you a pretty good water cooling system. Water cooling is worth it, if you're willing to go through the effort to set it up. And it would keep your Q6600 cool. But if you work on your computer alot, like switching parts and what not, water cooling could be a hassle.
That's the reason I don't go liquid. I open up my rig twice a month. I'm constantly adding or removing things. Or just cleaning and maintaining.
im gonna do it just because I like the looks. and I want to hit 4.5ghz stable...
IMO, water cooling isn't all that its cut out to be for performance, and although I'm only using a singlepass dual 120mm radiator, I don't think it'll get significantly better with a dualpass (maybe 5 degrees at the most?)
I'm also only cooling my CPU...
If you really wan't to overclock lol, buy a phase system just for benching
ehh. I cant afford phase. I want a stable, everyday of like 4.3ghz, which I got to no problem with not much vcore the other night. Plus, I really want the looks. Seems to be fun to me
maybe I will regret it, but oh well.