hardware encryption

I'm looking for add-in cards that implement DES and/or RSA for either a PC (ISA/EISA/whatever) or a Sun (S-Bus), preferably a Sun. Also, the RSA card would need to implement a 1024 bit modulus. Any tips or pointers? I've got the list of chip makers in _Applied Cryptography_, but the ones I've contacted so far don't seem to know anything about cards, even if they admit that they have the chips. Thanks, Doug