cpu coolers for HTPC?

[fuzzcloud]

i am going to put together an HTPC using a Silverstone LC20-SM case and hopefully this asus mobo (assuming it isn't delayed much longer). i need to replace the stock intel cooler with a quieter one (and preferably cooler, also). does anyone have any suggestions on a cooler that will fit in the case?

i do know the height of the case is 170mm (bout 6 1/2") if that helps.

here are the specs so far if you are interested...
Case: SilverStone SST-LC20-SM (Lascala LC20M)
PSU: AeroCool ZERODBA-S500 Modular PSU
RAM: Corsair XMS2 2GB DDR2-675 (PC2-5400)
Video: Gigabyte 7600 GS Silent Pipe
CPU: Intel Core 2 Duo E6400
Mobo: Asus P5B-VM
Optical: NEC silver 16x DVDR
Wifi: Netgear WPN311
HD: Seagate 500Gb SATA

 

[fuzzcloud]

ok... i was a bit worried because 150mm would only leave 20mm, is that enough to account for the motherboard and thickness of the case (assuming they measured from the outside)?

and will the heatsink alone be enough to cool the e6400 (possibly overclocked)?

do you think the scythe katana is a good choice? looks like scythe has a lot of different coolers to choose from actually..

thanks