It would be better if you added a picture of your PC
But let me rate it
Your ram is superb you might not even be able to use most of it
Mother Board will hold you up for a good while so don't worry
Graphics so far its good if you really want to pack a punch in it just upgrade to 780
Your Hard Drives are also powerful which is good cus when u start to save your game play and audio it takes up space
What i recommend is to start really over clocking your pc if you want maximum efficiency and to go up in both motherboard and Graphic card if you want to have that pleasure of a cleaner picture. Also grab some SD chips just for added insurance never know when your gnna need it.
Over all : 7.5-8/10

700MHz isn't superb. It's not all about the storage amount.

Ram upgrade (for dat speed, mainly) and good lord how do you live with two monitors of different resolutions? I have a second monitor that's a different res I plug in pretty much only for streaming to whack the chat and xsplit on and it bugs me even then!

Also Windows 8 is a fairly nice OS once you're used to it.

It seems legit.
As Pewdie once said - work with what you have 'caz the biggiest skill you need in letsplay is your experience.