You could prbly get a much cheaper case and power supply (i didn't look at the link) then 100 bucks. Im assuming budget here. So the build these fine techies have posted. Will do just awsome for your needs. And even better.
As for monitor. A CRT is cheap to buy, and most newer ones produce good picture. But they cost a **** ton to ship. While LCD's are limited at the more you spend, the bigger and better image you get. And they look sleek, sexy, ect. And are light.
I have yet to upgrade from my trusty HP CRT. It performs better then my dads 21" lcd. His is all show, no go.
Some say windows plays a demonic message when played backwards, but thats not the worst of it, play it forward, and it installs Windows.