[LAU] Linux guitar amplifier simulator

Hey guys, I just installed Ubuntu with a RT kernel addon and I'm doing my first forays into the OS. I've been a long time windows user but I figured I'd change to linux for a new perspective. On windows, I run a line6 guitar port for my guitar amplification needs. Unfortunately, the Line6 Linux software project does not support the Guitar Port. Luckily, I have a Tascam US122 with a HighZ input that I can plug my guitar into. I was just wondering what software was available to me for guitar amp simulation? Is there a guide that explains what to do? So far, google hasn't very helpful, my searches lead me to a guitar that's actually being converted into a LINUX GUITAR. Anyways, thanks -Chris