Gimme the old school NES plz

So while researching sound effects for the new game I am writing for, I stumbled upon this:

http://vtatila.kapsi.fi/nes_sound.html

This site had a very good article on how to get the NES sound onto your PC! I'm a huge 8-bit fan, so I went to one of the recommended sites:

http://www.wayfar.net/0xf00000_overview.php

This site promotes a NES cartrige/hardware midi interface. It's a bit pricy, but I was pretty impressed by it. I think I might be picking up one of these! I just have to get my old NES from home...