Good luck with your road bike purchase.
If you think you are going to get more on the heavy side, then look for some strong wheels for your ride.
Velocity Fusion or Deep-V wheels - Aussie made - would be a sound choice, and they tend to be cheaper than the Mavic etc wheelsets. ~$530 for Fusions vs
$1000 for Ksyrium Elites at my LBS.
http://www.velocitywheels.com/default.asp?contentID=538
I'm getting a fusion wheelset for my Scott S10. I rang the Velocity factory & spoke to Quentin, who suggested them over Nuvians, as I was the 'wrong' side of 80kg, ie 100kg
Deep-Vs would be good if you wanted something reeally beefy & strong, and come in some fairly psychedelic designs.
The Stock Shimano wheels that came with the S10 looked good, but were fragile, and stiff as a bloody wet bagel.
If you want something lighter, you could look at getting Mavic Open pro 32H rims built up with 105 Hubs or whatever. Just make sure that your hubs are compatible with the cassette and rear stay spacing.
If you are a smooth rider, you MIGHT get away with low spoke-count wheels, but there are plenty of blokes who didn't. Leave the light wheels for racing.