I'd like (well, the wife would like it) to be able to learn songs without making any noise. I typically download songs and learn them while sitting at my computer - which is about 8 feet away from my wife's computer. Anyway, the least expensive option I've seen so far appears to be a Rockman Bass Ace headphone amp (the old Tom Scholz thingy), which if I read the specs correctly has an input so that I can go from my computer's sound output to it, and play along in the headphones. Anyone have any thoughts about this option or any others? My amp doesn't have a headphone output, btw. Thanks for any suggestions.