After a quick lookover, I see that:
1. The case is 8 inches wide(roughly 20.32cm) and the card is 22.9cm wide I am not sure the 250 will fit in your case.
2. If the system is specifically going to support a single game, you may want to find out if that game takes advantage of multiple cores, and how many. IF it only uses 2 cores, then getting a quad core may be a waste when you get a duo core save some cash and get better performance.
If I have time I will add more later, And possibly a build for you to consider.
How much is the Windows 7 Student Upgrade? I am not finding it on new egg are you getting it online?
