Ok first off, make a wish list and just give us the link, a lot easier.
Screw Intel, AMD all the way, especially if you want Price - Performance ratio. For that price, you could get an Athlon XP 2500+ Barton core on the 333FSB.
Screw ECS, go with an Nforce2 based bored such as the FIC for 80$.
I'd get Kingston 512 2700 DDR ram for 70$ on there too.
Screw Nvidia, go with the 9500 128 NON-Pro, but make sure it has the L-shaped memory architecture, as that is the crucial point in buying a non-pro.
You can find cheaper cases than that, and go with a good brand-name like Antec power supply for the total price of that case.