Eacsr1321, careful what you ask on the forum. Asking for games, game images, or offering games or game images is expressly forbidden on this forum. You can be banned from posting ever again if your requests are seen by a moderator.
The cable you seek can be purchased online from Hong Kong. Just having the cable isn't everything though. You still have to download the RIPPING tutorial and Self-Boot tutorial (and numerous utilities) from DC CopyWorld (link found above).
Here's the link to a company that sells the Dreamcast "Serial/Slave" cable:
GoldenShop's Coder Cable