I need a heavy bass sound!

2009-07-15 13:46:58 by xGrimlockx

I've been using some default bass sounds and vst's with my music programs and I'm just unsatisfied with the sound I'm getting. Can anyone recommend a good free or torrentable vst or plugin I can get so my bass and bass synth has more oompf and doesn't sound like a brittle pushover?