Welcome to the forum! You're very blessed that you can discuss this topic with your parents. You don't say how old your parents are, but if they are elderly and have invested their whole life in the org, it could be a catastrophic blow to them. There are some here who have chosen not to tell their elderly JW parents the truth about "the truth".
What has started me to question things was the lack of love shown to my daughter and me, as a single parent and fatherless child in three different congregations. Also, the ridiculous amount of emphasis on the FDS bugs me. They have almost supplanted Jesus in focus. (Last year on the Memorial, the daily text was about the FDS, rather than Jesus.) Despite the claim that there was a first century Governing Body, there is little proof in the Greek Scriptures. There's supposedly even a tape available of Bro. Fred Franz giving a talk to Gilead school in the 70's stating that there was little proof of a governing body. Here's an interesting point made on this board: http://www.jehovahs-witness.com/12/108182/1.ashx
Another website you may find interesting is www.jwreform.org