[Hampshire] Where to buy an old PCMCIA NIC?

Hi,

A friend has asked me the best place to pick up a PCMCIA network card for
an old laptop.

He'd ideally like a shop somewhere in the Southampton/Portsmouth area, but
I guess online would do.

The key point is that the laptop is 6+ years old (and running Windows
98... yes, yes I know:) and while he doesn't know exactly what it will or
won't support he's concerned that if he buys a brand new card the laptop
will refuse to talk to it.

Any suggestions?

    Andy