Why not aluminum? It doesn't cause Parkinsons - that was disproved a while ago. My very favorite is a GSI hard anodized tea kettle, 4.5 oz.

The REI branded Evernew pot is good - .9L or 1.1L, lined or unlined - I got the non teflon version, because unlike aluminum, teflon really is poisonous, and I find it wasteful to have a pot with a coating that will flake off to the point that it's not usable. Titanium is good for boiling and not so good for cooking unless it's nonstick. It discolors if your stove is hot.

I also have a Fosters can pot. Compact and quite useful for one person.