Truth2me, i was where you are now about 3 years ago. One of the first things i researched was the accuracy of the NWT. Of course what you said about certain key doctrinal scriptures being changed to fit the teachings of WT are correct. Most are deliberate, and some are a result of poor scholarship.
No doubt you are familiar with the ones that deal with Christs divinity, ect.....But one that comes to mind on poor scholarship is Matt. 27:52,53. Every translation that i have read indicates the bodies of these beleivers were raised to life, and went into town and appeared to many. However, the NWT (not due to any apparant prejiduce) says that the bodies did rise to the surface of the ground, but people passing by reported these bodies to people in town.
I have read the greek to english on this passage as well as many commentators and other translations, and NOWHERE is there any mention of PEOPLE PASSING BY THE CEMETARY. There is also an old testament scripture(at the moment it escapes me) that says"Together with my dead body, shall they arise." This seemed to point to this particular incident, after the ressurection of the Lord.
The italics bothered me as well. Like in Collosians 1:16 when it says"all (other) things were created by him." That to me is obviously deliberate. I own a copy of most translations now, as well as various bible programs on cd with commentarys.
But i also believe that the gospel is hidden to them (non-believers) not because of a poor translation, but due to their hard heartedness. (Isa.29:10, Rom.9:18) If God is pleased to reveal the truth to anyone, in my opinion, he could do it throught the NWT. No, i dont use the NWT anymore, because of the above things mentioned, but if it was the only bible i could get, i would certainly use it, because God will reveal the things neccesary for salvation to you if you ask him.