Hi Ben, list,
I have an Edirol FA-101, which I like, and a M-Audio Firewire 410, which I don't like. You are on linux, so the M-Audio Firewire 410 won't work for you anyway. I use the FA-101 on OSX, but it's linux support was one reason I chose it, though I haven't tested it under linux. Edirol makes a similar device (UA-101) which is USB 2.0 and is more money for some reason. My 2 cents. I'm mostly motivated to write because it makes me feel better about having two devices, including one crappy one.
cheers,
Collin