The case might fall apart on you.
Hopefully not, but you may want to spring for a little more, maybe 30 bucks plus shipping?
I have no personal experience, but rumor has it that ASUS motherboards are buggy with this era of AMD processors. Maybe try this.
Power supply would be a gamble. It could be the greatest thing ever, it also could be unstable. They didn't even post amp ratings on the rails... Maybe go with Antec or a brand we're more familiar with. I'm not a big PSU guy, so I'm not gonna pretend.
Graphics Card: Atta kid, good choice.
CPU: You've got me smiling.
RAM: We're gonna do something a little different. You have a setup that supports dual channel ram. If you use 2x512 sticks of ram, your performance will increase.
Hard Drive: I have never owned a hitachi. Most guys will recommend Seagate and Western Digital. Maxtor is the next in line.
DVD Burner: Good.