I have been self employed for over 5 years. I have used 2 different plans.
#1 NASE National Association for Self Employed
#2 Blue Cross Blue Shield
The BCBS is far superior in all aspects. I will admit I am probably younger than you, 32, but I just got mother in law on the same program. They offered me better benefits at the same price, while having a larger network.
One piece of advice I can give you for sure is to sit down with someone who is in the business full time and is preferably a broker, not locked into one company. Don't waste your time with someone who does it part time or just got into the business. Typically the same person can offer you a wide array of insurance products i.e. life, auto, disability. You may be able to move other insurance that you currently have with them and get a discount.
Also I highly suggest that you just don't ever get sick!
Hope this helps.