Selling Several Ad spots on growing Website Worth Calculator

Spots :

Top Header banner
(468x40) - $25/Month 1 Spot Sitewide

SideBar Banners
(300x250) - $30/Month 3 Spots Sitewide

Listing page
(300x250) - $20/Month Top Row
(300x250) - $15/Month Top Row

Top Sites Listing -
(620x55) - $30/Month Top Row

PM for Traffic and stats details.

Thanks.