The band I play with is thinking about getting a Tascam 2488 MKII recorder to use in our practice room to record band demos. It is a 24 track recorder that sells for around $599 so may be more that what you need. It seems like all these recorders will provide much the same quality but you pay for extra features such as automated mixing and editing features. I wouldn't worry so much about that as long as you have the option of exporting the data to your PC so you can edit it there if you need to.