Been thinking I should get a drum machine. I actually have a pretty good old one. It's a Roland R-5, but the problem is I don't have a power adapter. Getting one would cost me over $90 bucks, so it seems like a dead end.

Suggestions anyone?

The BOSS DR-670 looks interesting.

I am noticing I need one for my teaching. I use the kids' toy piano with built-in rhythms when I teach. Somehow that doesn't quite seem appropriate... and the sounds suck....

I always encourage people to practice with a good rhythm track. Some teachers say you should practice with a metronome. Well, that is better than nothing, but it's got to be one of the most boring ways to practice playing in time. With a drum machine, you can get some good grooves to play along with, that beats the heck out of a metronome!