Dude, I went way broker then that doing out my case. (Lian-Li PC70) I like that case though, it looks good. Once you go aluminum you never go back though. I would suggest mounting the radiator on an exhaust though. That was you get the air out of the case. just make sure the case is well ventilated, other wise you'll be moving hot air through the rad.... another Idea is to isolate the rad from the rest of the case. you make an air duct which pulls air into the case, through the rad, and out.. without touching anything else. I just dropped my heater core (D-tek) through the top of my case, above the power supply and isolated it, using 4 LA1 panaflow fans to pull air through it.
Well, the system in there made me way more broke.