I would take that 2007 too. I have used ultegra for years now and I must say that I am very happy about that. It's very long lasting stuff and it is most definately competition capable.

I looked at the bianchi website for the 2007 model and the specs look good. The only part that I know people sometimes complain about (quality) is the wheels. The wheels are entrance level wheels, on the level of the tiagra group. The whr600 wheels are more a match for the ultegra group. But if you do not weigh heavy (and for those wheels heavy means a weight starting at 65 kilogram) then should hold up for some time. So you may want to see if you can make a deal with the bikeshop to upgrade them for, for instance, the mavic aksium wheels (about 75 euro's more in price).