I've been looking for a decent ripper (something like EAC & lame on win), and found a couple, ripperX which I couldn't get to work even after downloading tons of stuff and rubyripper. I first got on to v 0.5.3, which hung, hogging one of the cores to 100% on Kubuntu 8.10. I found a newer version (in my link) which works very efficiently, much like EAC (or CD-DAE), so recommend it to anyone looking for a CD ripper.