I know this will probably get taken down since it may not be following the rules but, some big powerseller on ebay is selling Gameshark 2 version 2's with an 8MB memory card and the Code Archive disk.
The seller is Wirelessme and I assume these are legit since he has over 2000 sales with 99% positive feedback.
I'm sure you PS2 owners know exactly what these disks can be used for. I use mine to play Import games amoing other things
They are $.99 + $9.99 for shipping