The DGStomp by yamaha as a build-in pre-amp.
I was looking at buying a line-6 but with the DGstomp you can use it live.
It's really made though for computer recording and live gigs.
But like I said, ain't got the money :) it's around 650 $ canadian.
I have cubase and it does have a lot of plug-ins, maybe I can find one that will help me. As far as distortion goes I'm not sure if it has such plug-ins. Might have to live witht he sound and rerecord later with a new pad. At least I'll get my ideas on disk.