This build is for the average computer user who wants something modern on the cheap. Using the Phenom gives the user more than enough power to last a few years, and since it is built on the AM3+ socket it can be upgraded later to a FX series chip. The power supply is my only concern when it comes to upgrading the machine, but for now it more than handles the power draw from the components. The case/psu combo makes this build extremely affordable, yet I was surprised at the solid nature of the case and steady voltages from the power supply. Don't get me wrong, this isn't a setup for your average enthusiast...it's a little tinny and underpowered for that, but the average PC user will find something like this to their liking.
Things of note - I used a stock AMD cooler I had laying around, as you see in the pictures and the CPU is actually a Phenom II x3 B73, which has the same clock speed as the 720. The processor is currently on sale at Micro Center for $40.