The best place for the coolit rads would be at the bottom as an intake...
i dont think the hoses are long enough to reach the bottom. it is a pre made unit with coolant already added in and everything.
im currently playing around with the budget and IF
i can afford it ill definatly get either the 690II adv or the HAF 922.
but i must say i do like how clean looking the 690II looks. im really liking that interior and it looks like it gives you more options on air flow than the HAF.