The cynical mind of a nerd being isolated from his peers.
great choices, mine wouldnt variate that much(i wouldnt aim for such a huge Hdisk)
no idea about the graphics card but you should look for and AMD chipset for a budget gaming PC. Look for the one with 3 cores. its good enough and cheap.
It's pretty good, may I suggest getting a custom fan for your CPU. You can get a pretty good one for quite cheap. The intel stock fans are really terrible. You could easily get like 30c with a affordable fan cooler.
Make it out of tinfoil, that'll be cheaper.