Nikon models in your price range:
L4, L3, L2, L1
The L4 -> L2 all have a 2" LCD screen, a 3x optical zoom lens, and increase in megapixel count as such:
L4: 4 (video only)
L3: 5 (audio and video)
L2: 6 (audio and video)
The Nikon L1 Camera has a 2.5" screen and a 5x Zoom lens in addition to 6.2 Megapixels, and also shoots audio and video. However, I do not believe that the L1 is still in production.
All the Nikon cameras come with rechargeable NiMH batteries and a two year warranty.
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Olympus FE 200
A new model for this year. It ships with a slow drain lithium block battery and has a 2.5" screen, and 6 megapixels. In addition, Olympus XD M cards save about double the number of pictures on the same size card as a camera of the same pixel count that uses Secure Digital. The only real let down with this camera is that it only shoots video when switched to the movie mode.
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Canon A540
6 mega pixels, 2.5" screen, audio video, upgradeable lens, and manual settings.
The A540 has more features than I can really explain in one reply. The only drawback is that the A540 does not come with rechargeable batteries.
The A540 model shoots great images for such a tiny sensor, and has lots of features through which to learn the finer points of photography (before you move to a digital SLR).
happy shopping, btw
P.S.
All the chargers that come with cameras are multi-voltage models. All you need to do is purchase a plug adapter for the country to which you are traveling.