Audio Assault has released BassGrinder, a collection of 12 metal-sounding bass guitar amps and 20 cabs for Mac OS X and Windows in VST, AU and RTAS plug-in formats.
Price: $29.99. GrindMachine + BassGrinder bundle: $49.99.
A free version which includes 2 amps and 3 cabs can be downloaded at www.audio-assault.com/downloads.