Would go for an Ampeg, I have the baby practice one for home use, BA 110, which is a great bit of kit, you can get the for a good price off the web, it has a tilt back facility which makes it like a monitor, not exactly stable but nice feature. The BA115 would be a good point to start at, has all the necessary out puts to make it good for gigging with, have a deal with Dave Tipping you won'tbe disappointed.
Trip