I use NorVax... GREAT lead company, and have closed 4 out of the 5 leads I've received so far! They have a great system where you pay about $300, and each lead has a value (usually about $10 per life insurance lead, and $20+ for a health insurance lead for groups). They treat it like a bank account... they pull the credit every time they send you a lead. You just have to make sure to call the lead right away, as each lead is sent to you and one other broker.

Good luck!!!