new bike, but which one?

pieman99
pieman99 Posts: 42
edited September 2011 in Road beginners
Hello all, hopefully soon i will be getting a new bike through the cycle to work scheme.
I've seen some bikes i like, Claud Butler Milano/Vicenza or Giro 400/500.
Now my question is am i going to see a vast difference between say the Milano and Vicenza in performance or will the speeds, time, etc be hardly noticable and the same for the Giros,s? Also, would there be any marked difference between the lower priced Milano and the higher price Giro 500?
If there wont be much of a difference between the bikes, then i would rather go for a cheaper option!
Thanks all!