you can use:
PCMCIA
usb/usb2
firewire


you need to find out if yer lappy has usb2 or firewire for a start.
Patricks suggestion is a good'un if you just need simple connections.

If you need lots of outputs for mapping different sounds into a mixer there is a new firewire maudio with 8outs coming out any time now.. i cant rememer if it £250 or £350..

ZM?