Thanks for the update. I'm glad that they were able to tweak the fit of yoru current bike. Having followed this thread from the beginning, I'm curious: What bike are you currently riding and, if you don't mind me asking, what do you most want to achieve in upgrading to the Specialized?

But back to the current debate: I'm a Campy girl myself. I don't have Chorus on my current bike, just a mix of Veloce and Mirage (and a Chorus cassette thrown in for good measure), but I'm quite pleased with it. Everyone claims that the shifting with Campy gets better over time as it gets worked in, and that's been my experience as well. I run a Campy Ultranarrow chain and shifting in the rear is very smooth, minus the occasional r/d adjustment.

That said, I'm not a fan of the brakes and, having read up on it, it's the one part of Campy's line that doesn't always get rave reviews. If and when I have the pleasure of building up my dream bike, I'm going to use a different brand.

While I am a Campy fan, I'm not sure the LBS's proposal to swap out the 105 is very cost-effective. When I swamped out a few of my components, my LBS essentially charged me for the price difference between the Mirage and Veloce. From looking at the numbers your LBS quoted, however, it looks like they're charging you the full cost of a Chorus groupset (I'm basing that on Colorado Cyclist's price of $1215 for the 10-piece group; you could probably by a cheaper set on Ebay ). So, based on those figures, you're actually paying for two groupsets--the 105 that comes on the bike and the Chorus. At least to me, that doesn't make sense.

So, while I think the Chorus components are arguably a lot better than the 105 (and many Campy fans would argue that they're better than DuraAce, but let's not go there), I have to wonder whether it makes sense to do it that way. I still maintain that if you're willing to swap out components, you'd be financially better off doing a few choice upgrades to the Comp, e.g, your rear derailleur, to improve its performance. Otherwise, keep it simple and just buy the Expert or Pro.