I recently got hold of both of these books - one was a pickup at a charity sale, the latter was for my birthday.
Both are excellent, and I can't recommend origin enough for it's clarity and straightforward nature. It's also an excellent book to gauge how people thought back then.
Anybody criticising it had better have actually read at least some of it - same for Dawkins. Same for the bible. If you don't understand something, you'll just sound foolish to those who do.
for lighthearted diversions, try reading "armageddon??"
StarDestroyer.Net BBS - Login and it's sequel "pantheocide"