Thermaltake can be hit or miss with its heatsinks, some are good, some not so much. Frostytech have tested out new cooler from Thermaltake called the V1. Give it a read and save yourself $40.
"Thermaltake have assembled the V1 heatsink from two radial copper fin sections which look like they were once intended for a VGA thermal solution. The copper fins are punctuated by four copper heatpipes and arranged so that air is drawn in through one set of fins before being expelled out the other side of the heatsink."