That could be tough... though do-able... I mounted my rad in the top infront of the psu (2x120). and the pump on top of the drive cage, but it's tight... I got the swiftech apex ultra kit to start...
thats a pretty nice oc j_blaze on sli good job, as long as you have good air flow you dont need water. I have been running just air on my sinlge card oc'ed were it is now from some time and my temps never go over 70c