Featurewise, the 12" Widescreen Dell (the 700m??) and 13.3" Sony Vaio are great, but they don't seem to be built well and aren't as reliable. That can't be judged by aesthetics, although the Dell and Sony do look good, IMO.
The Thinkpad line has a great reputation, but does the Thinkpad line from Lenovo have a great reputation? Is it safe to say that now? I don't know.
I'd look into getting a T-series laptop, preferrably a 14.1" model, but don't quote me about reliability, because I don't know much about Lenovo. They're not the same. Maybe they cut corners to save money.........I don't know. All I know is that IBM didn't seem to do that. They were expensive laptops, but for good reason.