There isn't much need for comment on this. It's a great build.
You could save some money on the motherboard. There are cheaper and equally capable models.
You could save money on the video card. Perhaps consider EVGA or the like.
And you could improve performance enormously by purchasing a small SSD on which to install the operating system.
As far as monitors go: they're not terribly expensive most days of the week. Watch sites like Amazon, Tigerdirect, and Newegg for sales. You'll find something worthwhile.
Best of luck.