The M-Audio Fast Track Pro if you want to go USB, I've been using it, sounds great, the bass guitar is faithfully reproduced fret noise and string growl is all there, voice and guitar sounds awesome and it comes with a killer VST guitar plugin that works with Reaper DAW and others.

I know it's creative but the E-MU 0404 pci is supposed to be great, I have not heard it but the guys on the Reaper forum seem to like it and you can find it for about $99.00 on Amazon

I have a question to, I would like to get more in's and out's and monitoring, has anyone used the M-Audio Fast Track Ultra? P.S. Jan I'm not sure about this one yet, still researching it, but it looks to have more pro home studio functions built in to it.

Warren