Holy fuck! That's MORE than enough. How did you end up with that budget? I don't know how the American school system works, but aren't juniors like 16/17?
Anyway, I wouldn't drop that much. Not really worth it.
I'd get this if I were you:
Then buy 16GB of RAM for 60$ and an 128GB SSD for 80$ and for about 1650$ you will have an ÜBER powerful and fast system that can handle anything like it's nothing except for 3D modeling and HD video rendering (which will both always take some time).
One thing to keep in mind is that you still got about 20 months to go till you graduate. A LONG time and you could either save 300$ by waiting till then or get an even more powerful system for the same money.
If you don't really need it right now, I don't see the necessity of getting it now instead of in 20 months.