Here's a quickie I threw together today. Azureus Vuze won't run on my computer properly without freezing, but I'll get that up once I can be stuffed to hop on my other computer.
You'll need to copy uTorrent.exe over yourself as it is closed source. Installation instructions are enclosed within help.html
uTorrent Portable is the popular uTorrent packaged in PortableApps.com format so you can download files on any computer. uTorrent features multiple simultaneous downloads, an RSS Downloader, global and per-torrent speed limiting and a configurable bandwidth scheduler. Plus, it leaves no personal information behind on the machine you run it on, so you can take your game wherever you go.
Pre-release 2: Updated to 1.7.2, added path changing stuff for settings.dat and updated installer.
Pre-release 3: Now updates paths in resume.dat, copies files properly across to the data folder, handles rss.dat and some other stuff.
Let me know what you think and any bugs you can find. I won't be on tomorrow, Monday, Wednesday, Thursday, Friday or Saturday, but I'll try and read this post.