So my I got rid of my non-stick crap over the weekend and am left with a what I thought was a descent set of Calphalon pots and pans, but I don't think they are ok. They are "Commercial Aluminum Cookware". So even though they were pricey 15 years ago, they are tainting my food, right? If I were to get a few new pieces, what is the pans best to get? What about a large pot for boiling? Thanks for your suggestions. (BTW I got stainless steel cookie sheets and cake pans this weekend as replacements, is that the right way to go?)