George is right...the little Zoom units are GREAT! We use one for single track voice-over recording, sometimes. I used an H-2 for the 10 minute guitar piece I recorded and posted in January.
In that case, I "lined in" from a mixer, but I also have excellent recordings of just a piano, bass and drum trio, done at a gig, with just the internal microphones.
One downside: the battery doors are extremely flimsy. Both the units e use have been taped together.
Knock yourself out while recording those great "memories".
R.