The Beatles are not over-rated in any means. They did amazing songs and were ridicously ahead of their time. Doing things like "You Never Give Me Your Money", "Strawberry Fields...", "Tomorrow Never Knows", "A Day in The Life" and "I Am The Walrus" in the 60's shows how good they are. Lennon is a ****in' genius. And Paul and Harrison fantastic musicians too.
There's no Dark Side of the Moon really, matter of fact it's all dark.