Last minute 2nd entry here guys!
Software: Reason 5
Tutorial: Pretty much the exact bass from my last entry with a little reverb and an env. filter added.
For this bass download the .cmb patch or go here: http://s2thekaul.blogspot.com/2011/02/s ... -bass.html to create it from scratch. After you have that taken care of, select the Combinator and create an ECF-42 Env. Filter set the mode to BP 12 and automate the Freq.