international adoption is expensive, no matter where you adopt from
countries that tend to be cheaper are the countries that require only 1 trip (half the travel expenses involved.) and that's all I've got on that end.
However, remember about the adoption tax credit. take into account that the IRS pays for $11,650 of any adoption finalized in 2008 (a tad more in 2009 probably)
You would be amazed at how much money you can come up with on your own if you pinch pennies, sell some stuff, and let your need be known.
We live on one income and don't have a ton of extra money each month, but we have managed to pay for $20,000 ourselves, gotten about $20,000 in donations/grants/fundraising and will pay the rest off when we get our tax credit back over the next couple of years. Our whole adoption will cost about $47,000.