Hey!
I use a dtek fuzion v2 with my q6600 and everyone else loves it but I HATEEEE it

But yea... if you do get the dtek fuzion v2 don't get the quad insert because apparently it either doesn't do anything or lowers performance (I was very ****ed about that, I lost 2C's by taking it off but in the process I stripped the screws on my block.... so now I can't open or close it again... In a few months I'm going to take a dremel to the screws and put some new ones in

)
I personally want to get this cpu block one day

sooo sexy it's called....
Ybris Eclipse
but I think it's Italian made and you have to search around to find one. I have yet to ask Aspire his opinon on the block though... but it gets glowing praise from everyone over at techreaction
mcw60 needs the gt200 retention bracket like someone already said. But only for the gt200 series (duh).
I have a MCW60 r1 and I've used it on an 8800gt and a 4850 so far and it rocks!

That's my 4850 baby right there, vmodded and never goes above 41c's! (My ambient must be high because it's usually 39-40c's with furmark for only that short period of time it was running).
Hey... I have a swiftech 120.3 rad/res right now on my rig... it replaced a swiftech 120.2 that I no longer use and has been sitting on a shelf waiting to be sold/ used in a new rig. If you are interested shoot me a PM (If I am breaking rules somehow just delte this last part please ^>^).
Welcome to the slightly expensive but very fun world of watercooling! With aspire helping you, your in good hands