Thats a tough one.
Might be tough sell to a newbie without the wheels, seat and seat post, which would cut down the people interested, but I think these Bridgestones are pretty tough to come by, especially new in the box. You probably have the last one of those! So a hard-core Bridgestone fan might be pretty interested and pay a good amount for it.
It looks like Shimano equipped to my untrained eye. Do you know which model - 105, 600, Ultegra? Is there a sticker on the seat tube telling you what tubing the frame is made with? Those things will matter some. But the condition and the fact that it has never been built-up or ridden is the real key here, so I would think you could get $350-400 as is...
Better experts will chime in soon...
It never gets easier, you just go faster. ~ Greg LeMond