When I bought my new laptop for interactive music I did a bunch of testing of the USB-Audio driver and latency. It is really slow. 10 ms was the smallest I could get with pd and jack with the CCRMA kernel. I ended up buying a Mac. Core audio is pretty good with USB but still there is significant latency. I just picked up an m-audio Firewire 18/14 and it's really great with latency. It looks like several people have the m-audio stuff working on freebob. For the most common and well supported interface, go for the RME multiface or digiface via PCMCIA. Matthew Polashek matt@tinysongs.com www.tinysongs.com