Nope.
I'm pretty sure all I need is the bible [1] 
I'm almost afraid to investigate it further. I didn't do much w/ it today. All I needed was a little change in perspective. The trinity never interested me before. Like I said before,
I never considered it a requirement for salvation [2] so
I just accepted what I was taught [3]
1. That's disappointing.

Not even the writings of early church fathers? Not that there's not enough evidence in the bible itself to refute the idea of the trinity.
2. But not believing in the trinity means you don't believe in all of god, so you don't believe in god...so you can't be saved. It is a foundation of the christian faith. Declared a creed and statement of true belief. Although, you're right about the trinity not being a requirement (at least not to God). According to the Ten Commandments (God), believing in 3 gods (trinity) might actually lead you to hell though.
3. Like so many christians for many centuries. Accepting what was taught, and handed down through tradition.
"For this is good and acceptable in the sight of
God our Saviour; Who will have all men to be saved, and to come unto the knowledge of the truth. For there is
one God, and
one mediator between God and men,
the man Christ Jesus" 1 Timothy 2:3-5
"Ye men of Israel, hear these words;
Jesus of Nazareth, a man approved of God among you by miracles and wonders and signs, which God did by him in the midst of you, as ye yourselves also know" Acts 2:22