Recommended batteries for CANON cameras S5IS & A720IS

I recently purchased two CANON Power Shot cameras: the S5 IS, which uses four AA batteries, and the A720 IS, which uses only two. My old 15-minute rechargeable Ray-O-Vac 2000 NiMH batteries don't last long on the A720IS, so I'm hoping that someone can recommend a good brand of NiMH batteries w/charger to use with both cameras. I would probably buy an extra set of four.

Would I be better off getting the highest charge capacity battery available? I believe the highest I've seen is 2700 mA·h at 1.2 V.

Thank you.

Sanyo's or Energizer's I say. Depending on how often you use them, Duracell's Powercells (blue ones) lasted me months. I spent less on batteries buying new ones for my S3 than I have on my flash buying rechargeables.

I have 2 dozens of these batteries and I use them for everything in my house that’s battery operated: from the tooth brush to A720IS, from the TV remote to 580EX..

http://www.tigerdirect​.ca …details.asp?Edp​No=3517030

They came with cheap ultra quick charger and despite the fact that fast charging reduces battery life, they just keep working and working, with zero problems in more than 2 years now..

http://www.tigerdirect​.ca …pNo=1487814&Sku​=ULT317921

Highly recommended!

The Ultras sound impressive -- and I like their prices! Thanks.