Im not a good source to ask being a new college grad, but I would say go for it, it can help your career and make your daughters life better when its done. It's too bad that you will have to seperate from your daughter.
My Parents recently moved to Hong Kong (well 2 years ago) and the time has gone by quickly and it has furtherd my dad's career. Granted your daughter is younger so you don't want to miss out but 2 years really isn't very long in the scheme of things.
Good luck with your decision.