Every serious chef uses his or her Dutch oven constantly, and probably cast-iron skillets of every size too. Lodge Logic has supreme quality products and they are a fraction of the cost of the French Le Creuset line.
Cast Iron Pans - These are the best tools, make sure properly seasoned with a high-temp oil over hot heat until sealed. Wipe out with paper toweling, don't use soap! - temper them in the over at 250 for 25 - 30 minutes.