HOW MANY NETWORK CARDS ON NT???

I have a question. I run a LAN with one server (NT 4.0) and it is a file/print server. All other computers run WIN 98 and have an assigned IP address. Would putting more than one network card in the server affect the speed of data retrieval??? Are there any special configurations I need to know about?

Thank you,
David Dotterer
Computer Guy
270-384-6408