What is the recommended vaccines people get for going there?
Hepatitis A + B
what other ones do I need to go to SEA?
I've read that I should get a tyhpus shot, as well as rabies.
There have been many discussions on this, including one for the last day or two. Check out this one: https://www.travelfish.org/board/post/vietnam/11831_jabs-for-traveling-vietnam - but search the forum for many others.
There are various opinions on whether you should get the whole suite, or none at all. My suggestion: read the other discussions, educate yourself from other sources such as the Travel Doctor and WHO websites, then decide what is best for you.