LOWmax is a decent rig,
I use CharacterAnimationToolkit for my commercial work, its not supported with the .x exporter so i can't use it with DBPro, so i create custom rigs, there is no better rig than one you can make yourself, once you get into scripting custom attributes for a rig, you can make extremely flexible rigs.
People seem to underestimate CS, its a really good bit of kit, CAT has a lot more to offer though.
Also, physique is a part of CS too, its much better for skinning than skin is, you can simulate muscle bulge and all that, when you get used to it that is...
[Looking for work]