How to turn my Desktop computer into a WiFi Hotspot?

by Jaxx89 - 7/7/09 3:56 PM

I have seen how to make a laptop into a WiFi hotspot here
http://cnettv.cnet.com/make-your-laptop-hot-spot/9742-1_53-28619.html

What I want to know is how do I do the same with a desktop PC with a Wired Internet connection and no WiFI capabilities so that I can share my Internet connection with my laptop or any other device.

NOTE I AM USING VISTA 64 BIT OS SO PLEASE SUGGEST SOME USB ADAPTER THAT WORKS WITH VISTA 64


Additional Details
I dont have a free PCI slot so can I use this or any similar one that works with Vista 64bit

The ones available here.
Belkin N Wireless USB Adapter

Or the Belkin Wireless G which is quite in my budget

Or the D-Link Wireless G DWA-110 USB Adapter

Or DWA-140 RangeBooster N USB adapter(Like this one)

My laptop Supports 802.11a/b/g and N draft(its an Acer Aspire 5738G)