I really really really hope that one day WOOT will have a deal on Sanyo Eneloop rechargeable batteries. They are the GOOD rechargeable batteries, unlike the ones that they typically sell at your local retailer. The eneloops can sit on a shelf for over a year and still retain like 80-90% of their charge. Combine those batteries with a good charger like a LaCrosse BC-1000 and you're good to go on batteries for a few years.
That being said, I'm in for a couple of these packs, since I have lots of cheap electronics and even a few cheap flashlights I could use these in. However, I would never use any alkaline battery in any GOOD equipment that I have (yes, I have a $70 flashlight that is smaller than a tube of chapstick!).