Water or air cooling for cpu?

>From what I am hearing, the new 32 nm processors are running so cool that they don't really need water cooling. You might want to just buy a standard air cooling unit, and then do your overclocking and see if you need water cooling, and if so, then buy a water cooling unit. Reason I suggest this is that if you don't need it, why buy it? Second, water cooling is expensive - so save the money if you don't need it.