are the air cooled ones really much worse than the water cooled? because i'm under the impression that the water cooled system requires a separate water tank and pump? which would just put the price up further.
The air cooled are very noisy not necessary worse. The water cooled only require a very small fish tank pump £3 http://www.ebay.co.uk/itm/Ultra-Quie...uYAAOSwR5dXREE~
and a 2 ltr Tupperware container for the water.