Stacy,
The timelines & prices will vary by agency. There are only a few Korea licensed agencies per state. I can PM you the agency we used since they also work in PA.
Our son is 13 months old and arrived home last month. For us it took 9 months from application to travel. I hear things have slowed down a bit though.
We have been very pleased with the Korean program and our agency. They were very staight forward and answered all our questions.
I will send you a PM with the name & contact info. If you have any questions please feel free to email or PM.
Here is a link to some photostoo.
http://www.youtube.com/watch?v=tkwgSH2OBc0
Goodluck,
Heather