Networking Two PCs & Laptop

[Colin]

Hi,
I'm trying to network two desktop PCs and a laptop. The
two PCs are already networked with ethernet cards and a
direct cable between them. I went to my local computer
store to find out how to network all three for sahring
brodband and they said i need a ethernet modem( mines
USB) and a router.

Can I not just buy a router connect all three up between
it. Then set up the network and share the USB Broadband
connection from one of the computers?

Any help is appreciated.