I have a few dremels, first skip the cordless ones for sure. It will leave you hanging at the worst times (from experience). The rest are all pretty much so similar as to not warrant discussion unless it comes with some of the power attachments in the box( to which it sounds like you don't need). The real differences are with the hardware eg. polishers, grinding wheels, so forth, this is where you can spend some real money through time (the dremel is really a Trojan horse to get you to buy these items). My local hardware store though sells non dremel brand hardware kits that are just as good as dremel brand for about 1/2 the cost. All in all, I love my dremels, and you will find more uses for them than you ever thought of initially...