I am a little clueless, so forgive me for this question. I am buying this http://www.dealextreme.com/details.dx/sku.13060 and I am trying figure out what batteries I'll need. The description for the light says "3.7V ~ 50mA (low) ~ 2000mA(High)
4.2V ~ 70mA (low) ~3200mA(High)"

So which battery: this: http://www.dealextreme.com/details.dx/sku.29031 with 2500 mAh
or that: http://www.dealextreme.com/details.dx/sku.26249 with 3000 mAh

or something in between? Does it matter, will both work. Will one work better than the other?

Thank you