XBOX360 RGH worth

Not sure if I could ask in the new classifieds anymore, so apologies for posting in here.

I have an RGH Phat Jasper
Banned
1TB Internal Hard Disk in the caddy.
Coolrunner
Power brick and 1 controller
DVD Laser just replaced
latest firmware installed today.

Kids dont use it anymore so want to sell but I have no idea what it is worth.

Thanks

Daz