BTW, this:
http://en.wikipedia.org/wiki/Harvard_Classics
is an incredibly outdated list. Just take a look at Modern English Drama. Not a hint of most 19th century novels anywhere, because they, well, were basically sitcoms of the day and did not deserve such praise as to appear in student classes back in 1910 when the collection was first published. Thus, they were no classics.
I prefer to just browse the huge gutenberg collection and read at will...