FX gives me a headache

I am permanently moving from the US to Europe in about a month. I have about $50K in savings in HSBC high (and ever-falling) interest account. I am at a loss as to what to do with this money. Money-savvy Mefites, please come to the rescue. So I have all this money sitting in savings. For the next four months my salary will continue to be paid in dollars. I am a horrible, albeit charming, investment ignoramus. On one hand, I feel terrible about converting my savings to euros, on the other I don't know whether I want to leave my money in the States especially if the dollar is to further depreciate against the euro. I considered buying an apartment in Washington, DC and renting it out; but I wonder if there are other means of managing my hard-earned money and assuring that it will not loose its value. Ideas? Comments? Anyone? Bueller?