I've got one of these, Thermaltake A1998: http://www.ebay.com/itm/Thermaltake-A1998-Cop … =item4d03c5c5ad
It's very cheap, and you just add your own 80mm fan. Unfortunately I haven't gotten to use it much as the Voodoo5 build it was going in has had so many problems and isn't running yet, but it is a very impressive heatsink in person. It's all copper, and the fins are really dense; I'm very confident that it will be a great cooler once I get my build working.
One issue I had with it though: the screws that shipped with it (used to install an 80mm fan) were actually the wrong size, so I ended up doing a slightly-ghetto fix by using some thin screws and nuts on the opposite end to hold the fan on. Minor inconvenience for an otherwise quality $8 cooler, but figured I should mention it.
PCs, Macs, old and new... too much stuff.