Since you'll be stationary for 2-3 years at a time, I would suggest you bring your stereo along. You'll be glad you did.
Here's what I do. I bought some bookshelf speakers and integrated amp in NYC. The amp is 120V as is the player.
I lived in Cyprus for a few years and now live in Dubai. First thing is to get a transfomer. I use a balanced, isolated, step-down transformer.
Recently, I picked up a used ps audio p-500. I rewired it, with the help of PS Audio, to accept 230V and output 120V.
With this set-up I can pretty much move anywhere in the world and still be able to use my american equipment.