Radio Shack has a new one that's loaded for around $350. It's not a grand piano feel, but for new, and with all the bells and whistles, it's not a bad item to pick up for your situation.

For used: Korg, Alesis, Yamaha, Roland, for examples would be good, and might be in the 450. range. Depends on the age, and abuse they got from the previous owners. If at all possible, take a good keyboard player with you to anyplace, to check them out before commiting.

Happy playing!

John


Actually a Member Since 1996 or 97 (Number One Hundred Something).
https://www.soundclick.com/bands3/default.cfm?bandID=1409522