Parts / rock tumblers....??? what do you have?

Hello! I'm in the market for a parts tumbler...Looking to spend up to around 200 at the max...maybe more depending on what you guys recommend...I will use it for small parts, mainly to polish nuts and bolts...I don't need a crazy high capacity one...I just want one that works, one that I can run for about 24 hours at a time, and one that is very durable where the motor wont burn out, or vibrate to pieces....So what do you guys recommend? I'm willing to pay more for durability and longevity.. lol

Here's one at harbor freight for starters...

http://www.harborfreight.com/garage...ratory-bowl-with-liquid-drain-hose-96923.html