Right now four (not including the floating population of beach bikes) as follows.

My folder, a Dahon Boardwalk that I find surprisingly useful. Parking is never a problem and for spur of the moment rides it can't be beat.

An old Bianchi Advantage hybrid. What the wife calls my SUB. (Sport Utility Bike) Fenders, racks, flipped moustache style bars. When I look at it I think of PeeWee Herman's bike.

A Specialized Langster Single Speed. Love this bike. Simple, accelerates like a rocket and very comfy. I live in the Low Country of GA/SC and on days of no wind or light wind it's my bike of choice.

My Bianchi 928 with Campy Veloce 10. I can't imagine why I'd look at another road bike. This is my third Bianchi road bike. The company makes a wide range of bikes but they have a real touch, IMO, with road bikes. Plus you can generally get them off the rack equipped with the Campy.

Having said that about the 928, there is a LBS locally that has a Lynskey frame that is "just my size" and the owner has made me an offer that is oh so tempting. I've never built a bike up from scratch so I've got the wants for it pretty bad. Two problems I see in my way. The stock market is killing me right now so "disposable" income isn't easy to come by. And if it was there is the distinct threat of divorce.

So, if any body out there wants a really sweet Ti frame and carbon fork for $1700 and needs it in 53cm size and 54cm top tube PM me and I'll put you in touch with the shop.