How do I test my haplogroup?

[Jose Pacheco]

I always wanted to know for sure where my ancestors are from. First of all, I'm very skeptical and have doubts about how accurate these results really are. How much does it cost to take one of those tests, and how accurate do I need to expect them? Let's say they show me that my dna is from haplogroup Ia2a which is balkan haploroup. And... 15 % r1a. What do I interpret from this? That my ancestors are from the Balkans?

Thanks in advance, - Jose