First, a big thank you to RWood for providing these. Second, since he must have compiled HTML sources to create the Mobipocket versions, could the HTML also be posted? This would allow reading on a wider variety of devices and also allow conversion to even more formats.
If you want the "Shelf of Fiction" that was compiled after the original "Classics" collection, I found a link at Bartleby (a good source for lots of books):
http://www.bartleby.com/ebook/