I wouldn't live in Austin if I hated the heat/humidity that much, so I'm doing alright. http://www.aomaustin.com/home.html is the website of the mortgage broker I went through and am going through again currently. Can't go wrong with a guy named Joe Bob! I no have affiliation or will get any kick backs from any business they may receive. I just received excellent service so I recommend them where I can.
My take on Austin at this point is it's hit or miss. I wouldn't focus on one section. There are sketchy sections north/south/east. West is safe, but really expensive and you won't find many multifamily properties that direction. I've seen some places down south of 71/Ben White that aren't too bad, and a few northwest that are in good neighborhoods as well. I've lived hear my entire life and it's changing constantly, my advice would be to drive around to where you see them listed and see what's happening in the neighborhood now, as opposed to a possible misconception from years ago.