Hi. Yeah I'd be glad to give more specs on the G4.
It's a PCI version (Yikes) so it has a ATI Rage 128 16mb PCI graphics and the drive is 17gb's in size.
I've never sold anything through ebay... so I don't have any references there. I've bought plenty of things and my handle on ebay is "darthrohan"
If that's not enough, I'm sure we can work out something out on how to get it shipped and all that....