I needed to torrent something earlier and I was in Arch. I didn't realize that I had not installed a bittorrent client in Arch before, so I had to snoop around a bit. I settled on Deluge. It seems to work really well and has a neat, efficient interface. I liked it so much, I'm building it for Slackware, too.
Anyone here use this app?
http://deluge-torrent.org/