You'll be hard pressed to find old-style Saturn cases. If you don't want to use CD jewels, you could try the DVD-style replacement cases. (ala PS2. They'll stack, but it won't look the same. Not nearly as nice, but useful.)
No pick but listed
here.
Then there's
this.
They look pretty good in the store. It's not quite the same as the old Saturn cases, I know. But they might be your best alternative without loosing your manuals to a normal sized CD jewel.
Other matches can be found
here.
Good luck,
--KageoruSama