47 cm Cannondale Synapse with 700cc wheels. I find this bike to be a bit twitchy but I think it is the handlebars, I am contemplating putting a shallower drop. I haven't found a great toe overlap issue, so I really think it isn't the wheels but the bars. I also thing a shorter stem might help.
I used to have a 48 cm Fuji with 650cc and don't think it was that different except tubes were harder to come by.
Amanda
2011 Specialized Epic Comp 29er | Specialized Phenom | "Marie Laveau"
2007 Cannondale Synapse Carbon Road | Selle Italia Lady Gel Flow | "Miranda"
You don't have to be great to get started, but you do have to get started to be great. -Lee J. Colan