Yes you do, it's super easy. Can you get on your AIM?

well, a good size one but not to big.

Do I have to build this all myself, my mom doesnt want to D:

What size monitor do you want?

well alright

Well it doesn't include a monitor, and I you could do better if you built it yourself.

I found this..

is it good?

Yes ok, well you really limited the budget , k I'll start making a build.

like Windows 7? I'll just get it retail.

Operating system? Do you want to buy it retail or burn your own copy?

500-700
Gaming(CoD4, BO, Terraria, Minecraft, Killing Floor, WoW) Recording(Minecraft Lets plays)
Yes
Whats an OS?