I apologize for my ignorance a head of time.... but I am new to this.

Is it possible to convert my Trek 4100 mountain bike into a more road worthy thing. I've been going on short day trips with friends (all who own road bikes) and they're kicking my butt. I want something a little more road friendly with a possible option to go on overnight trips.

So I'm wondering, is it at all practical or possible to convert my Trek 4100 mountain bike into a more road worthy vehicle. Maybe new tires? drop down handle bars?

Thanks,

Steve