Possible to lift a trap door automatically with an Arduino and winch-type motor?

Thanks guys. CrossRoads, they are wicked awesome but you're right, a little overkill. I just tried to figure out the weight the winch would need to be pulling and it looks like under 20 lbs at it's heaviest point. I'm going to look for a lighter-weight winch but it looks like I'm on the right track now.