Between those 2? The Nashbar unless you're on a really tight budget. 5700 shifters are much, much better than 2303 shifters.
The CXP22 rims on the Motobecane are bog-standard low-profile alloy box rims just like the rims on the Nashbar bike. You wanna pay extra for the "Mavic" decals? That's on you.
If you're worried about the gearing, the Nashbar will probably work fine with a 32-tooth big-cog cassette.
See this thread:
http://www.bikeforums.net/commuting/...ete-105-a.html
Lots of options there to get a lower gear ratio if you want.