Without question the nicest buffer/polisher is the porter cable random orbital. Meguiars sells one but you can also get it at your local home depo or lowes, it;s marketed there as a sander/polisher. Through Meguiars it's around $200.00. I have had the 30-75 dollar units I've bought through sears wal-mart e.c.t. Your just wasting you money, save up and buy a good one or, like the other post just use you hand. I can tell you this though I've had my buffer for about 5 years and have had NO problems and the results are awesome. You'll use 75% less wax and other compounds because it lays them on so effectively. I wax once every other week all year round and I still have not used the orgianl bottle of Medialion wax that I got with the Buffer kit. Also for a very good wax-topcoat Colinights 245 has some very good results.
Hope this helps
Eric