Nitpicking : I believe it's Reese, not Reece
http://www.discogs.com/artist/Reese
I think the original Reese is "round" - like this.
http://www.synerjee.net/exp/dyson_reese.mp3
A more drum 'n bass Reese would be this:
http://www.synerjee.net/crap/dysonbass.mp3
Both of these come from the Virus C.
A complete howto can be found here:
http://www.producer-network.de/tutor...hts/12275.html
(german, but just click on the Winamp playlist and you'll hear it step by step)
It's indeed much more of a technique than an actual sound or piece of gear that's good in doing this.