Rob, just buy it. Those thousands of dollars will feel like hundreds after you've gone into this bike addiction. I'm considering a Cervelo RS (because my flexibility sucks and I'm short) to replace my Look 555. I quite enjoy the ride on the look - sporty road feel, yet not hard on the body - but the geo is just not that great for me (reach too long).
I'm considering an "early 40" year old present - I turn 39 in 4 months
