buying a bike

I’m strongly considering purchasing a road bike. I mentioned this to a co-worker who is a fairly dedicated cyclist, and after a lengthy discussion, he sent me a number of funky links – all to things that are probably out of my price range, but fun to look at regardless.

The Slingshot frame lacks a down tube. I imagine it’s a bit of a head turner on the road, as is this frame from Softride. Prettiest of all? The Quintana Roo TiPhoon.

(Bike buying advice or pointers are welcomed.)