Wow, you're right about the Tennyson - I think I only checked the epub section. Just had a look at the mobi, though, and it uses very low-rez illustrations (probably the ones from adelaide.edu). I'm trying to get them in better quality - I've tracked down most of them, but I think a few are still missing. If I don't have them all after the Heine is finished, I might have to use a few of the low-rez ones.
T.S. Eliot, I'm afraid, didn't follow the example of most hip poets - he just didn't die young. Will still be a while before his works are in the public domain. Kobo is selling his Complete Poems and Plays for under €14, though, which isn't too bad, I think. I might even be tempted to buy it, though I've alredy got the print edition...