I just got my now 9 week old GSD pup last saturday and here is what I got for her. Here are the links for them
Food - http://www.amazon.com/gp/product/B003M61HU6/ref=oh_aui_detailpage_o01_s00?ie=UTF8&psc=1
Food Bowl - http://www.amazon.com/gp/product/B0033PR7CS/ref=oh_aui_detailpage_o02_s03?ie=UTF8&psc=1
Water Bowl - http://www.amazon.com/gp/product/B0033PR7FK/ref=oh_aui_detailpage_o02_s01?ie=UTF8&psc=1
Bed - http://www.amazon.com/gp/product/B00063KG3W/ref=oh_aui_detailpage_o02_s02?ie=UTF8&psc=1I specifically bought this off amazon because it was MUCH MUCH cheaper than anywhere else, also it is machine washable. Which I already did once after Luna dirtied it up.
Poop Bags - http://www.amazon.com/gp/product/B00AOAT0PC/ref=oh_aui_detailpage_o02_s03?ie=UTF8&psc=1
Leash - http://www.amazon.com/gp/product/B001WRON4E/ref=oh_aui_detailpage_o03_s00?ie=UTF8&psc=1
I know some people would frown at this because they would think it is too small, but I wanted to have Luna develop good leash manners from the get go. Fortunately she are has pretty good leash manners already and it has been a breeze to walk her.
Tarp - http://www.amazon.com/gp/product/B003OSTDYO/ref=oh_aui_detailpage_o00_s00?ie=UTF8&psc=1
I put my pups crate in the corner and then a tarp down under it so that when accidents happen, 1) it is easy to clean up and 2) won't stain the carpet. It saved the carpet twice times already and today is the first day she hasn't had an accident!!
Collar - Small size buckle nylon collar from petsmart (couldn't find the link online), 8"-13" will do you fine for now, that is what size I am using for Luna, of course she will grow out of it very soon.
Puppy Shampoo - I haven't bought any but my breeder said baby shampoo is just as good so I probably will buy some at Walmart the next time I'm there.
Crate - 48" MidWest Ultimate Pro Triple Dog Crate
I went with the 48" crate because it was cheaper on Chewy.com then most 42" crates I could find online via amazon, overstock, etc. and it was more of a bargain then the 42" crates.
http://www.amazon.com/gp/product/B005AP3B8S/ref=cm_cr_ryp_prd_ttl_sol_5 - Luna ABSOLUTELY LOVES her moose pal and always sleeps with it at night
Hope my list helped you, and congrats on getting the new pup!