The fan on my IceQ 7870 recently quit working so I figured I should go ahead and go for a watercooling loop and I was wondering if someone could instruct me on which parts would be the best to buy for this as I am no expert on the subject and instead of shopping around everywhere forever I figured I would consult those of higher knowledge. *Note* I have a Rosewill Blackhawk (not the ultra) case and there is basically no space inside for a rad so it would probably have to be mounted on the outside. If you could help me I'd be very appreciative