Yeah, I figured out shortly after my post that it'll be too dark to ride without a "to see" (as opposed to a "to be seen", which I already own) light by mid/late August. That pushes my timetable up a bit more than I'd anticipated.
Thanks for the link to BikeSmart cyccommute. I'll check into that place more - haven't heard of it before.
I don't "technically" need anything with monstrous run times as my one-way commute to the train is 15-16 minutes in the morning and 23-25 in the evening (downhill vs. uphill), but the extra flexibility would be nice for if I want to get in some evening rides after the kids go to bed.
Thanks for the responses.