I could give you what's available here, but it won't help you if you don't live in Pennsylvania. The way healthcare is currently set up, choices depend on where he lives or attends school. Availability of health insurance varies from state to state. I believe healthcare reform intends to open up the markets so people can take advantage of insurance available in different states, but that won't happen for quite a few years.
Based on previous posts, it appears as if you live in Florida. I'll assume that this young man lives in Florida too.
If you enter information into these quote websites for Florida insurance, you'll see that there are policies for as low as $41.00.
Health Insurance, Medical Insurance Plans | Health Insurance Quotes
Florida Health Insurance | Florida Individual Health Insurance Quotes
The private insurance via those quote sites might exclude pre-existing conditions.
If he has been without insurance for 6 months, he will qualify for this state insurance:
http://www.coverfloridahealthcare.com/#
Check out the pricing of the state insurance. If it's more affordable, he might be better of waiting 6 months if he hasn't been without coverage that long.
The other advantage of getting onto the state insurance is it's group coverage that doesn't exclude pre-existing conditions.
Healthcare reform has eliminated pre-existing conditions being impossed upon policy holders, but those changes won't go into effect for a few years.