LaCie 500GB external drive.  USB, firewire 400, firewire 800, and  
eSata interfaces.  Extremely quiet.  In perfect working order.  I  
build a backup server, so I no longer need this drive.  All original  
packaging and cables are included.  Drive is currently HFS+  
formatted.  There is basic backup software on the drive itself, but I  
have never attempted to use it.

I'm asking $80.  It cost $125.  I purchased new from Amazon about 6  
months ago.  You can pick it up in Tempe, or I will ship anywhere if  
you pay shipping.

Here's one review that I found with a quick Google search :
http://www.macworld.com/article/133840/2008/06/lacie_d2quadra_disk.html

For more research, the model is 'LaCie d2 quadra 500GB'.  It looks  
like there were several revs of this model.  This one is the more  
recent (I think) one with the ribbed aluminum case.

thanks,
alex