All you need is a transformer 240V<->120V -
these are easy to get,
maybe look in shops where they sell electronics for tourists, or
South American 'visitors' ...
Here's how I'm avoiding this problem for my collection: I'm moving into a
new house and getting 220 installed where my stuff it going to be
located.. since it's right where the breaker panel is, it's not going to
cost much at all... so if the computer in question is going to be located
in a basement or wherever the breaker panel is, you don't even need a
transformer... just get an electrician, friend, or do it yourself..
Kevin