Having read the Bittman article about buying cheap cookware from a restaurant supply store, I went to pick up some stuff for my kitchen. I bought two Amko (korean brand) cast aluminum saucepans that were both under $20. Since buying them, I have been reading about the debates over aluminum...healthwise (aluminum getting into food, etc.) and tastewise (acidic stuff not doing well with aluminum) Anyone have advice for me? I need to decide whether to return this stuff and maybe invest in a more expensive but non-problematic piece of cookware. Thanks in advance!