A couple of things i'd add to the list:
Under $100
1. Blank CD/DVD's. Can you ever have too many?
2. Call of Duty 3
3. Linksys Wireless game adapter. Great for devices that have an ethernet port, but you want them to be wireless. Can be used with Xbox360, PS2, etc or a printer, laptop, that doesn't have a wireless NIC.
$100-$500
1. Slimdevices Squeezebox.
2. iPod Nano - yes the big ipod is there, but most people prefer the size of the nano and the fact that it's not damaged from shock.
$500+
1. iMac w/Remote. Makes a great media center.
2. Yamaha YSP-800