Actually, I have a appointment at noon tomorrow for a pre-fit. I'm bringing my current Madone 4.6c so he can scan in all the measurements. I also have the fit sheet from my last fit. He's measure me so we order all the correct size parts. Once the bike comes in, he'll do a full fit and swap anything that needs to be changed.
As far as N+1... I already have my current bike for sale. It's just too nice to sit in the garage and not be used. I have it listed here and on Craigslist for half retail which should be a good deal to the new owners.
To me a N+1 should not be a second road bike, but maybe a cyclocross bike or a mountain bike.
Here's what it should look like. Yes... another matte black bike, but this one will be mine.
Here's the old bike. See what I mean about a rolling billboard. But still its a great mid level bike and i really enjoyed riding it.