Thanks guys. I ended up buying an MXR El Grande Bass Fuzz. I didn't want to by online and they only had this one left (and a Bass Muff) at the music shop so I went for it. Basically, it's got the 70's fuzz circuitry and the tones I was looking for, and was affordable too. The deep switch is really cool. It really brings a lot of low end to the mix and the pedal has a nice boost when the volume is turned up a just a little and the fuzz knob is almost turned off. It's a little hot but I find it's very versatile. It has lots of great tones.