now I have too many bikes

My fav commuting bike is my Trek SU100 -- with its rack & pannier setup I can carry almost anything I need. My older commuter the Trek 7200 needs to go on to a new owner -- I have it rigged with rear reack and fenders and it is a nice comfort ride. With my recent purchase of a road bike (Giant OCR3) I have no room left to park my rides. I need space so the older Trek must go, and my friend's circa 80's Trek racing bike must go also -- the shed is a great parking garage but we can't even walk in there now.