Since I'm using the 462+ I'm going to recommend it
It does a pretty damn good job IMO. My cpu is running somewhere between 33*C & 43*C (damn Asus & their crappy temperature monitor) on full load and this is with an OC from 2ghz to 2.4ghz on a 190mhz (380mhz DDR) bus.
But the biggest reason I like the Swiftech is I like screwing the heatsink to the Mobo. I've broken too many socket clips and they are hell of a lot harder to take off after the fact than the HSF that screw in, IMO.