Thanks y'all! I purchased some shoes by Golden Tiger and checked with the sensei. He said that they will be fine as long as I only wear them on the training floor and not out and about. So, I'm all set! @Senseikellam: I've actually had MS also, since I was 16 years old, but I've mainly been in remission for the past 18 years. When I went to college, I had some problems with my balance and coordination and TKD helped me immensely! I can't wait to get started with these karate classes!