Newegg offers the T-Fal Signature Non-Stick 10-Piece Cookware Set, model no. A821SA94, in Gray for $49.99 for free shipping. (Amazon charges the same.) Outside of the below mention, that's the lowest total price we could find by $12. The set features aluminum construction, non-stick interior and exterior coating, and venting tempered glass lids.
A close price: Walmart offers it for $50.85 with free shipping.