I just sold my first item (a board game called Hoity Toity) here on eBid, so I thought I'd leave a note with an observation on my experience.
Generally, I prefer to print a packing list to include with the shipment. I think there needs to be a mechanism that takes the auction data and the eBid purchaser's account data and creates a single letter sheet size packing list that can be folded into a shipping label as well.
I would prefer to see something that folds into thirds and then folds over in half to make the shipping label.
This would also be an opportunity to gain a second exposure with the end buyer and remind them that they purchased the item on eBid by displaying the eBid logo prominently on the packing list (but not on the shipping label portion).
This is just my opinion, but since it would provide uniformity to eBid buyers I really think you should make this available not only to the seller+ accounts, but to all accounts. Again, this is just my opinion and observation, but I think this is a key aspect of the Amazon marketplace.