If you're looking for a great choice at a slightly lower price than the Bosch Palm Sander, you'll love the SKIL SR211601 Random Orbital Sander. At 2.8 amps, its motor is slightly more powerful than the Bosch sander, and at a maximum of 13,000 orbits per minute, it's a little faster, as well.
FESTOOL RTS 400 REQ 1/4 Sheet Orbital Sander (RTS 400 REQ) (201608) $559 Incl. GST. A fantastic compact and easy to use rectangular sander, capable of both course and fine sanding. Includes Longlife dust catcher and protector. Available on backorder.