Definately look into this more as others have said before you make such a decision. I would call the embassy in Ankara . There have been many times I have done so myself, since my wife is from Turkey. (I am actually leaving for Istanbul tommorrow to see her

)
The embassy has been pretty helpful and patient with me when I have asked them questions. If you are in the USA, you could use a "calling card" (Nobel is the card company I use) to call them from here.
(The only hard part is getting up at 4:30 in the morning , eastern time, to do it

)
You have a "link" to their website from a reply above......use that....
I also copied the phone information below.
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Telephone and Fax Inquiries
Hours for telephone inquiries regarding immigrant visas are:
Monday through Thursday between 10:30-12:00 at (90)(312) 466-6100.
Direct fax inquiries to (90)(312) 468-6103
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I hope it turns out well.