Water cooling vs window AC unit

[mpj76a]

So I was just wondering, how effective would it be to place a box with 3 7950's right next to the vents of a window AC unit?  It would def eliminate water leakage risks.

[Moonchopper]

Condensation might be a problem, in and of itself. Getting a case with high airflow and with a decent number of fans would probably be a safer bet. Not to mention, if you're getting the A/C unit explicitly for the PC, then you might end up spending more money than you can make...