well, basically, if you're not scared, then get the fop-32.
also, the alpha pal6035 has a good clip design -- it's got a 3 section clip so you can manuevre (spelling) the hsf.
however, due to some recent reviews, i must also reccomend the thermaltake volcano II. from the pics, u can see that the clip design was made for the "screwdriver trick". it's actually a pretty good cooler, with temps at around 40-45 degrees at full load. not bad