I have a friend that had numerous personal items such as kitchen and some computer related that he sent them from South Korea to his girlfriend (Thai National) and there was no issue what so ever on importation. I believe it was all sent via postal. He had the contents translated to Thai on the customs declaration form as that might have made a difference?? At any rate no duty or delivery issues.
I have recently replaced my PC with a Mini and components hand carried with no issue at all, so that is a good option if you can wait until your next visit home.
Oh, I believe if you import within 6 months of your arrival there is no duty on household goods, I did that as well, my goods came from Cyprus. I hadn't even had my Non-O visa yet on arrival but my goods were handled by a professional shipping company.