Nope, not using a mac.. soon though! I'm pretty sick of Microsoft, so when Leopard's released I'm going to switch over. Yeah, I know the way they do that, pretty annoying, but I'm usually searching for files that don't attract such attention over copyright issues, so I guess I was just shocked by the scale of the problem. Do the 0 byte files in the incomplete folder add to the high number of sources for these downloads? If so (or even just for keeping the folder clean) Limewire should delete any 0 byte files on cancellation. There not doing any good for anyone there..
One thing I've noticed is that these files are usually hosted on systems with "browse host" disabled, or when browsed the error "couldn't browse host" pops up, so armed with this information for random spot checks, I'm going to go on the biggest careless blocking spree ever!

Expect to next see me under a thread named "No search results.. WHY?! " haha