Dunno what's the best but I sorta made my own unit out of a 90mm fan. Just took of of those unused 5.25 floppy/ZIP drive converters and cut a hole in the middle. Glued the fan onto the unit using superglue. Mounted it on the bottom and now it works like a charm! My old drive would use to be a little hot to touch (at times getting close to burning my finger) but once I added the fan, the drive was VERY cool. Don't know if you really need that integrated heatsink but it could help. Vantec does make good stuff from what I've seen.