I got my Continental 3000's today at the LBS (700x28) and installed them myself. Cleaned up my rims and adjusted the bearings while I was there. I could have definitely saved a few bucks if I'd have ordered them over the web but I wanted to support the LBS. Its nice to not have to wait on FedEx/UPS!
I have recalculated my VELO2 and as soon as the evening cool gets here... I'm gonna do a few laps to see what changes!