Using my equipment in America and Europe

Check the input voltage requirement on the AC adapters. Chances are they're good for both 110V and 220V BUT be careful, because if they say they're not, they won't be and you could damage your gear and maybe even cause a fire, which would be pretty exciting but not really ideal.

The good thing is that you should be able to find AC adapters locally when you're overseas. Check the input voltage requirement on your equipment and find an adapter that works on the local current.