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Could do that. But I'd feel like a bit of a cunt as I'm only ever going to buy through my LBS - get them to order in whatever I settle on and install it, all paid via cyclescheme. I wouldn't know where to start with setting up gears, cables, derailleurs, etc but plan on watching closely to try and figure out what does what, what goes where and why. Give me something else to waste countless hours of my life messing with. I'm all but settled on the campag athena.
Find a bike shop and test ride 3 bikes, all of which have different shifters?