Power Supplies out of stock

I have a WD Elements External and a WD My Book Premium Edition, neither of which I have a power cord to anymore due to moving and losing them. I went to purchase replacements from the WD store and yet both of them say they are out of stock, is there any way to find out if they will come back in stock or a place to purchase legit replacements rather than try my luck with an aftermarket one.

try this list

http://wdc.custhelp.com/app/answers/detail/a_id/1378/session/L3RpbWUvMTM1MTAyODA2NS9zaWQvTThucGV0OWw%3D

That does not help me one bit, thats the list I used and both of my hard drives that are on the list are out of stock…

Anyone else have an idea, or should I just take a shot in the dark and go aftermarket?