There is a lot of hoo-ha about ZBrush at the moment due to the release of the second version and I have to say, it does look a pretty amazing modeller - I tried the demo and couldn't really get to grips with the interface. I don't know how long it takes to get used to, but I just couldn't get my head around what the heck I was doing. There are quite a few outstanding models coming out of the ZBrush camp although what you have to understand is that the poly counts they end up with are pretty looney as well!
One guy who mixes both Lightwave with ZBrush is an artist called Southern (I think that's his last name)
http://www.southerngfx.co.uk/graphics.htm
Definitely an interesting little package.