Any case will set you back atleast $30, even a crappy oven style one. Get a decent motherboard, and use an old case until you can afford a proper one. If you dont have one, mount it to a bit of plywood.
Just noticed this deal at the bottom of you'r CPU's page. Itl get you everything but the GPU and an Optical Drive, but you'l have enough left over to get those. Looks decent as well.http://www.newegg.com/Product/ComboDealDetails.aspx?ItemList=Combo.956665
May be worth checking out
Is there an amazing graphics card that is around $100? If you can find one, it can seal the deal with this. If you can, please find one that is about the same as the Radeon HD 6850. I really like that one. But, of course, I'm going to be upgrading my GPU in the future months. So, here are my reqs for my around $100 GPU:
Skyrim on high graphics
BF3 on good graphics
Minecraft on, um, Minecraft graphics.
Also, my res is 1920x1080.
Thanks for all your help so far!