I'm looking at building up a new frame and have come down to a decision between two frames, both cannondales, one a CAAD5 and the other a CAAD7. Looking at the cannondale site there is a difference in geometries between the older, 2002, CAAD5s and the current top-o-line frames, the CAAD7. I wanted to know what the experts here have to say about these differences. The CAAD5's geo can be found here: http://www.cannondale.com/bikes/02/geo-20.html, and the CAAD7's here: http://www.cannondale.com/bikes/04/geo-14.html. I was also wondering how much of an improvement the CAAD7 is over the CAAD5. Any information will help, thanks.