What are the safest most affordable areas within 30 minutes of the medical center?

It would be inaccurate and irresponsible for me to tell you any area is "safe" or "unsafe," and either could be easily disproven. The best advice I can give is to check out a few crime statistic sites for a particular desired area and look for areas/ properties that have good crime prevention/ security measures in place, i.e. neighborhood crime watch, courtesy patrol, gated/ guarded/ well lit/ maintained communities, security cameras, monitored home intrusion systems, limited access buildings/ parking garages, etc. Also, get to know your neighbors. These can be some of the best deterrents of crime. When all else fails, adopt a Chihuahua. Mine do a great job at letting me know I have visitors! ;)

Regarding affordability, this is pretty subjective and would depend on the budget you are trying to stay within. If you would like some help looking for properties, I would love to help you.