I had an Allez and slowly went through the process of upgrading it, my order of changes were as follows;
Pedals: Shimano 105
Wheels, Mavic Ksyrium Elite c. £400
Tyres: Conti 4000 GP S c. £55
Saddle: Spesh Romin Evo c. £80
Groupset: Shimano 105 c. £400
Mudguards: SKS Raceblades c. £35
Pedals: Look Keo Max 2
Handlebar: FSA Team c. £120
Saddle: Fizik Kurve Snake c. £110
Then I went up and upgraded the frame recently and it ceased being an Allez, well the frame and a few other bits too, well it's easier to list what was taken across to the new frame
It has become a dedicated winter / wet weather bikes and it equipped as such.
I am now left with a frame set that I want to find a good home for, the Mavic Ksyrium Elites and a few other bits.