Looks like I gotta give this one a try. I've been using FG-X for quite a while, before that was using Ozone. I was thinking about picking up the Sonnox Limiter now that it's had a serious price drop at Sweetwater. I've always liked that plug in, I was able to get really loud mixes with it and that enhance slider, I've never heard anything else like it, but it was always a bit too expensive for my liking.
I'm a bit worried about using FabFilter plug ins in my mixes ever since I demoed their EQ plug in and felt it colored my tracks too much (wasn't transparent enough), but I did fall in love with their gui. Pro-L does look sweet especially being able to see the amount of gain reduction right in the waveforms. I've never seen a limiter gui quite like it.
Thanks for all the suggestions guys. As always, much appreciated.