Pyrex lids should be fairly easy to find at their outlet stores, if not, could probably be ordered. Check the web site for locations. If you are on a budget and want metal lids, I would check out the generic lids which are flat and fit a variety of pots. The big advantage is that they will fit a variety of sizes. so you don't need one for each pot. Saw Elton Brown using one of these a couple of days ago. Should be available at restaurant supply stores or over the internet.