I just almost finished building my new PC, an i7 920 in a Antec P182 case, with an Asus P6T Deluxe V2 Motherboard, and 6GB Corsair Dominator DDR3. Temporarily using a 9600GT, waiting for the new ATI 5 series.
I'm pretty much finished with the build, only thing left is to install the i7 920 CPU, and it turns out that the Xigmatek Dark Knight I bought is a direct-heatpipe cooler, which I have no clue how to install or apply thermal paste. I have a new vial of Arctic Cooling Silver 5..
Just use a small dab on the cpu and usa card like your blockbuster card or something like that and spread it evenly accross the cpu. I hope you don't have your mobo in your case yet. The Dark Knight is a pain to deal with when the mobo is in the case.