I had the same career in China that I had in the US.  And now that I am back in the US, I am still in the same industry.

Finding a job in the US wasn't that difficult, I just needed to be flexible with where I worked.  So when I did my job hunting, I sent applications all over the US.  Luckily I was able to find a job that allowed me to work from anyplace in the US so I can work from home.  But I would have been willing to move to any city in the US.

When you go to find a job, you have to look beyond your job title and more towards what you do well.  For example, if you teach English in China, you probably have good people, organizational, mentoring and planning skills.  Those skills can be applied to a lot more jobs than just teaching.  So just remember to be creative and flexible in your job search and you will do great.

1) I found a job right away, in the industry I worked in before China (also IT). But a worse job than I had before. I'll kind of have to crawl my way back up the ladder.

I found work no problem, but it really was an adjustment getting back into the swing of things. 

Do you have a career you will be going back to? Cause I did and it was so hard getting back into shape, I felt like a greenhorn again and it was very frustrating and even depressing. But you just gotta remember that you'll get through it and get back on top...and I did.