How do I share printer and a folder?

[ODC]

Hello. I for many many years only had only my desktop computer. Now I now have a laptop. I would like to access a folder on my main computer with the laptop, as well as the printer.

I have a cable modem connected to a wireless router/switch. The desktop is connected via ethernet cable to the switch portion of the router. The laptop will of course use the wireless connection.

I figured out how to share the broadband connection OK using the IP address of the router as the gateway, and both computers now have Internet access. I now wish to take this a step further and share a single folder and my printer with the laptop, but I am worried a bit about security.

I want to do this right some some as***** doesn't break into the desktop from streetside. Can anyone help with a specific procedure to follow to get this working?

TIA!

edit: Sorry, I didn't notice the Networks, Internet and Security section until I had already posted here.

Edited June 19, 2005 by ODC