Walmart offers the Rachael Ray Oven Lovin' Non-Stick 5-Piece Bakeware Set in Gray/Orange for $24.40. (Amazon has it for the same price with free shipping for Prime members.) Opt for in-store pickup to avoid the $5.99 shipping charge. That's the best deal we could find by $4. It includes a 9" x 5" loaf pan, 9" x 13" cake pan, two 9" round cake pans, and 10" x 15" cookie sheet.
Cooking Depot via Amazon offers Prime members the Lodge 6-Quart Cast Iron Camp Dutch Oven, model no. L12CO3, for $39.30 with free shipping. (Non-members can spend $49 or more to qualify for free shipping; otherwise, shipping costs $13.03.) That's the lowest total price we could find by $20. The lid can be used as a griddle.