The Fenix Shillboy
Join Date: Aug 2007
Location: League City, Texas
Bikes: Raleigh F500 mountain bike and an exceptionally old (mid-60's) Schwinn Collegiate 5-speed.
Personally, in your usage situation as described, I'd probably consider using higher-capacity NiMHs as opposed to Eneloops.
Even though you probably won't be pushing the limits of their capacity (since you only typically discharge them to about 60%), you'll get longer run time if you ever want or need it and the higher capacity batteries will leave you in with less chance of ever fully discharging them via your use. Since the Eneloops are relatively to the lower capacity side (by today's standards), you might push them more than you would a 2500-2700 mAh battery.
Another consideration might be as Wanderer pointed out in the "Battery charger -- what fits my needs?" thread where he cited the Eneloops as better cold-weather performers than hot-weather performers. Those considerations might be worth a look, too, as part of your evaluation.
Personally, I use mostly the higher-capacity NiMH batteries, but I also keep some Eneloops in reserve.