New road bike advice

Hi guys

I currently ride a Charge Filter Mid 2011, which is effectively a cross bike. I have come to realise that the groupset is pretty poor (Shimano 2300) and also fancy another bike for "nice weather" so that I can keep the Charge as my winter/training bike.

What do you think of these? It’d be used for club runs/sportives.

• http://www.wiggle.co.uk/colnago-air-105-2013/ (although reviews on the net aren’t great for this one)
• http://www.wiggle.co.uk/de-rosa-milanino-veloce-2013/
• http://www.wiggle.co.uk/de-rosa-milanino-training-veloce-2013/ (more or less the same but can fit mudguards)
• http://www.epic-cycles.co.uk/Bianchi_Impulso.html (would probably go for the 105 version, but feel I ought to have the traditional celeste paintjob!)
• http://www.epic-cycles.co.uk/Cannondale_CAAD10.html (but not a fan of the Liquigas colour scheme)
• http://www.canyon.com/_en/roadbikes/bike.html?b=3074

The Canyon is by far the best ‘bang for my buck’ but I am a little nervous of them not having UK customer services.

I also quite like the fact that Epic (who are fairly local to me) do a proper fitting and you can do test rides.

Have any of you had any experience of Campag groupsets? There are a few knocking around in my price bracket (£1000-2000) that have Veloce, for example, but I don't really know anything about it. Are they better/worse than Shimano 105?

I’m not sure about moving to carbon fibre so these are all aluminium frames.