I would highly recommend "Ready Player One" by Ernest Cline.
I just got a copy from readitforward.com and I could not put it down. It's set in the near future which is a very possible reality, where people spend their whole lives as avatars in OASIS, a very real Sims/WOW game.
Even if you are unsure of the subject, it is a highly amusing adventure story and the eighties references are abundant (for me, a plus!)