I also emailed and asked for the serial# and if it was a 30 or 60gb. His response:

it is a 60 gb. and yes i do have the serial number i
supppose i will just have to look for it on the unit.
at the moment i cant do so though because i am at
work. i have a lady offering me 650 cod. ending the
deal so if u are interested let me know. if u have
anymore questions let feel free to email me thank you!