Best price for Card Embosser

either printer that can print onto plastic cards like school ids or an embosser that would emboss like a credit card, preferably a store that i can walk into in san francisco. all suggestions welcome!

Try your local hobby store or office retailer, though I would be very careful of what you intend to do with it, as it could be considered a felony to give false ID's and/or misrepresent yourself or...