I have downloaded hundreds of books from Project Gutenberg and they work just fine as long as you pick the right format (EPUB or PDF). I usually sideload them from my computer using Calibre but you can download them directly on the NT, the only difference will be where they are filed. Anything you download directory will be in your My Downloads directory while Calibre will place them in subdirectories by author's name.
You should see PG books listed in your Library.
Excellent. Thanks Omnigeek.
I've found that the Texts category at www.archive.org/details/texts contains a number of collections in addition to Project Gutenberg, so searching there returns many more titles. For example, searching PG for "railroad" returns 30 hits, while an archive.org texts search returns over 5,600.
Not all the documents are available in epub (and some aren't available in pdf either), and some of the epubs are unproofread, raw OCR conversions of scanned pages with typos and occasional gibberish. But to me it beats the socks off not being able to see 'em at all
File names are another issue - I'm in the process of consolidating all my archive,org and PG epubs on my computer, looking at them with a Firefox expension which reads epubs, and renaming them to match the title and author of the actual books. Then I'll sideload 'em again.