Good policy, just make sure to avoid the Chinese ones if you can. German ones aren't known for leaking and Canada also makes Duracells only we don't get those ones here so I've no idea whether they have a good rep or not.
Curved ball:
How may cells do you use in a year? Might Lithium Ion battery packs be cheaper in the long run? I'm getting a pair of these for my JVC PC-5 and PC-11, each one is the same size as one of JVC's original battery tubes and the pair can be charged off the job with my universal charger. They cost £42 for the pair but can be recharged up to a claimed 1000 times. Alkaline Procells (exactly the same as the copper topped ones, only the livery is different) are around £8 for a case of ten from eBay and last well but once they're gone, they're gone so potentially (

), the Lithium ones can save me loads. Could save you a whole lot of cash too, Chris.