Make sure you have a tri-band phone, otherwise it won't work here. If it is, also make sure it is unlocked, otherwise, i'm not sure if retailers here will unlock here, though i'm not sure about that.
I have a tri-band phone in the States, but gave it to my dad to use until my annual contract is up early next year. I then plan on having him ship it to me and so that I can use it here.
bvamin