Once again I recomend m-audio, if you want a good audio interface thats USB......
The M-audio Mobile pre is a good one at $150.00 it has mic pre's and 1/4 guitar line in's.........
If you want one e-mail me I work for a place that sell's em
and other interfaces(Including edirol soon) Just show me a link to like musicians friend and I'll beat it and we can order you one in.
That is if you want one. Call it a favor for a soon to be regular on the Homerec forums. that goes for everyone.
-Reco