Audio Damage
Quite a few good pay for plugins, but also 2 freebiees
Rough Rider
Rough Rider is a modern compressor with a bit of "vintage" style bite and a uniquely warm sound. Perfect for adding compression effects to your drum buss, it also sounds great with synth bass, clean guitar, and backing vocals. Definitely not an all-purpose compressor, Rough Rider is at its best when used to add pump to rhythmic tracks. Of course, you can use it however you'd like. The Compressor Police aren't gonna come to your house and give you a citation. Slap it on a track and crank some knobs.
FuzzPlus 2.2
FuzzPlus2.2 is the current version of our popular free Fuzz+ plug-in. The basis of the plug-in is a transform model of a famous vintage fuzz pedal. There are four controls:
Fuzz knob: This controls, as you might imagine, exactly how much fuzz is applied to the signal.
Tone knob: This controls the brightness of the distorted signal.
Output knob: This is the output volume of the device, when it is active.
Bypass button: This works just like the switch on a stomp box. When the orange light is lit, you're money. When it's not, the input is passed directly to the output. This can be automated for a slightly different vibe than automating the effect bypass of your host.
FuzzPlus2.2 is available as a VST effect for Windows, and an AU or VST for OSX. The OSX versions are Universal Binaries, and require OSX
10.3.9 or later for PPC Macs or 10.4.4u or later for Intel Macs.
http://www.audiodamage.com/downloads/