Currently reading 2001: a space odyssey. About halfway there. Been on my list for ages.
That's very good. It and the sequel 2010: Odyssey Two are well worth reading (although 2010: Odyssey Two
is a weird hybrid, it incorporates elements from Clarke's novel but where-ever the movie contradicts his book it takes the movie as canon).
I'd skip the subsequent books though as if memory serves they got really depedent on repeating chunks of the earlier novels and 3001
in particulwar was just.. eh.