See, how can Apple compete with this?
One, by not looking like a piece of junk. Two, by having everything integrated into one essentially thick LCD monitor (yes, comes with monitor). Three, by having a superior OS as opposed to the injured Vista Home Premium. Four, by using the superior Core 2 Duo. Five, gigabit Ethernet. Six, a LOT more useful software. Seven, a high-end mouse. Eight, built-in camera with video conference software. Nine, Bluetooth. Ten, I don't know how much power it sucks, but it's probably a lot more than the 180W for a mid-range iMac (including monitor). BTW, did you know you can wall-mount a 24" iMac with a standard VESA kit?
But what you posted isn't a bad deal if you just want a basic box with decent speed and storage.