tandem
Enlightened
Where I live, AA and D cells are common. You can buy a crap load of generic ones for dirt cheap. Like 12 AA batteries for less than a dollar
However, if I cannot get good torches for that kind of batteries, ill invest in rechargable ones. I can live with that if D-Cells are not that popular
You'll want to check out the Flashlight Reviews section before making any purchase then. Some manufacturers and certain lights are far more efficient than others at producing more light for longer run times off of common alkaline AA cells. If you aren't sure you want to jump into rechargeable cells straight away, at least pick a light that is known to work well off both alkaline and rechargeable cells -- that way you have a choice.
From your description of how you intend to use the light, and your stated objective "good all rounder", it seems possible that what you might really want for a first quality LED light is not a big monster at all but an every day carry (EDC) sized light -- something small enough to drop in a pocket. Good lights can be had for 50 - 70$ that will far outperform - many times over - any old D cell incandescent you may have used before.
If you shop carefully for your stated $100 budget you can even outfit yourself with a good light and a decent charger and good quality rechargeable batteries (Sanyo Eneloops or their Duracell equivalent, white-top Duracell "pre-charged") and be set for years of very inexpensive light as those cells can be recharged hundreds of times. What's more, many lights will actually *perform better* off the rechargeable cells.