I found one through a link that JMO put up the other day.
I just received it and haven't gotten to use it yet.
It's
www.esunhealth.net
It's a free trial membership through 2006 and then it's $20 a year to keep it. You can save up to 35%, average is 15%, but sometimes there are no savings.
But, hey, it's free to test it out. You can also use it if you have insurance but the drug you're on isn't in their formulary.