Well I have a hard copy of Leaves of Grass on my shelf. I would not mind reading once more some of my favorite poems, but probably not the entire book when I have so many other books to fit in.

I will third Gerard Manley Hopkins. It is available free as an ebook at at least three sources according to Inkmesh : Poems of Gerard Manley Hopkins.

Short too, at about 100 pages according to Amazon.