Here are some pics of the previously mentioned setups of mine (on page 1). Four bike rack with my Merckx up top, 73 P13 below and the Fuji track on the other side. :

Many of the others are hanging or sitting below the hanging ones. In the picture the white one hanging (86' Schwinn Peloton) and the grey bike to its right (76 Paramount P14), and then two out of three sitting on the floor below them are mine (84 Le Tour polo bike, GT GTB track bike, and currently my Viner track bike [not the now sold Lotus that is shown in the pic]):



The rest of my other bikes are sitting in other places in the basement by themselves held up by one of those holders that fits around the frame and supports under the BB, or a stand that a crank arm fits into.