I had the same problem. I have an Olympus C700uz, and I was going to Jamaica (I'm still here !!). For me, I bought an extra SM card. Each card holds approx. 56 pictures, which gives 112 total on 2 cards.
For batteries, I use AA rechargable, and I have 8. I live in Denmark normally, and the voltage is 220 there, but here in Jamaica it's only 115, so I bought a converter, which converts from 115 to 220. Works perfekt. I always try to charge up all the batteries in case, I go to a nice place with many photos. Hope this helps a bit.
Kenneth from Jamaica. (Yeah man
Becoming a dad is the greatest.