Those $300, I voted for, are not going to give me any materials?
Excuse me... where did you find 300 USD in voting?...

And more detailed about this process - in main theme, please. (I am sorry - but there I will answer for all in Russian. If you can't understand it - please, give me a sign and I will translate all. Thank you!)

This money will only go into moving the project along?
No - only for to start the project.

I would still need to pay for CD or VHS once they are going to be released?
Yes, but not so much as "not-paid before"... Sorry about my bad English - in main theme will be more detailed answer.