I've tried a whole bunch of Bittorrent clients for the Mac, including Tomato Torrent, Bits on Wheels, uTorrent, Transmission and a couple of others I can't recall, switching from client to client as problems arose. When I read that Vuze was supposedly faster because it got more peers, I scoffed. But it seems to be true. I was using Transmission for a torrent and barely downloaded 500MB over four nights, usually getting one peer and no seeds. Frustrated, I turned to Vuze for the same torrent. Within four hours, I had 500MB of data from three seeds and two peers. Four overnights (14 hours each) vs. 4 hours. No contest! And it's not very resource intensive, either. My CPU meter on a single core Atom netbook running OS X (nice low power consumption machine for extended downloading) only shows about 20% CPU utilization. It's also eating about 200MB of RAM, about the same as Safari as I type this. Not too shabby.