Hello, all; new(ish)bie here, wondering whether it's time to go over to the dark side? Thought I might canvass opinion/experience, as some of you may have had a similiar start/decision. Started riding again in summer 02 (now age 54), to get fit/commute etc. I suspect like many here, I used (70s/80s) to pile up the miles on a '10 spd', then left cycling behind. Began with, and still using a good, lightweight mtb (Giant Rainier, now) w/slicks. I really don't ride off-road much at all, and then only on wussy groomed singletrack adjacent to multi-use paths. But, I find (a) I'm addicted to cycling again, and (b) I'm starting consequently to pile up mileage (about 3000kms over each of the last two seasons). Obviously, I'm thinking I should be changing over to a road-based bike. So, my question really is: have any of you gone through a similiar pattern, and if so, how have you found the switch? Flat bar vs. drops? Frame material? etc. I am concerned about 'comfort', to some extent (incipient arthritis; somewhat limited flexibility) and safety: a lot of my mileage is accumulated commuting/riding in traffic. The problem is, of course, that 'test rides' don't really tell one much at all -- hence my interest in others' long term experience. Sorry for the long post, but any thoughts etc. on all this much appreciated. Cheers.