err was just gonna post exactly those three, took me 5 mins to come up w/ them.. anyway I'd say either the accelero or the zalman vf900, flip a coin cause if you ask me they'r both great. [though from experience, the ZALMAN mounting patents are horrificly crippled, be prepare to cut yourself a couple of times!!!]
But don't take it as there are no cons to the Accelero!! The accelero heatsink will probably take up half of you'r case space, LOL!