I don't have anything nailed down yet, but I'm looking to go water to air. Seems foolish not to since you don't have to cut your bumper support, it takes less space and less piping, I think it actually cools better, and to top it off its cheaper.
http://www.frozenboost.com/ will sell you a full kit for 280 bucks.
I think I'm going to buy a few things from them and vulture the rest of the parts off of an SVT Cobra or Lightning as they likely have better quality pumps and exchangers.
I'll probably be buying this
http://www.frozenboost.com/product_i...b4068d096bf526