I found a BD mixte that seems quite attractive here: http://www.bikesdirect.com/products/...ensington8.htm
I'm interested in the mixte because of the low step over height and from what I've read, mixte tends to be stronger than the dropped top tube typically found on women's bikes.
I'm a bit curious about he sizing though because they are smaller than the men's sizes though. For a 5'8" man, should I go for the 49cm? Lack of geometry on the site makes choosing this difficult.
The other thing is how difficult is it to assemble and possibly change the gear on the Nexus hub? With a 44T crank, I want a 24T or 26T gear on the hub. This will give me the desired gearing according to Sheldon's gear calculator. I live in San Francisco, lots of hill here and I prefer easier climbing over speed.