Me too. LOL. Getting old really bites. I have too much to do to be this tired. At least I get to slack on wood duty, getting just enough. It's been to mild for much of a wood fire.
When choosing a random-orbit sander, look for a motor size, body configuration, and pad size (5- or 6-inch) that fits your workload. A decent palm-size unit will cost between $50 and $100, while heavy-duty right-angle or in-line ones cost $150 to $200. Whichever type suits you, be sure to get a model with built-in dust control. If you have a shop vacuum, do what Norm does and connect the sander to it. You don't want to breathe in any of the material that these sanders remove so effortlessly.