I wrote a simple guide to US taxes for overseas Americans. It's free, so check it out. I've also listed some accountants in the article. I plan on going with Greenback Tax Services. Their flat fee of $329 is well worth it considering I spent a total of 23 hours last year on my taxes and this year they've gotten a whole lot more complicated!
If that's too much for you to spend, there are plenty of other cheaper options. Look into getting a tax guide and see how much easier your taxes can be.
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