In the mood to buy an expensive new power tool, but you aren't sure which make and model to choose? Whether you're looking for a table saw, shop vac or cordless drill, some research is in order to avoid making the wrong choice for your projects and your budget. You'll also avoid getting stuck with clunkers. Sometimes trial and error is fine, but vital tool information now can be found online thanks to American Woodworker magazine. This fine publication did exhaustive tests on just about every type of common power tool made, and then put the results (and expert recommendations) on its Web site. So, if you are in the mood to buy an expensive new power tool, and don't want to make an expensive mistake, you can check on what pro woodworkers said was best -- for free. Go to Americanwoodworker.com. And, for more tool tips, visit our Web site -- Onthehouse.com.