I'm using Lightwave 7.5 and am very happy with the Poser integration, and with the stability and quality of Lightwave itself. Although I have all of the relevant Greenbriar plugins (as per MindVisions supplied address) I still often use the ProPack for LW plugin because of it's absolute simplicity. It pulls the complete PZ3 into Lightwave, ready to roll. It does not, however support the P5 specific features such as dynamic hair and cloth. Greenbriar plug ins allow you to bring in the cr2 and rigs it for you, and then you need to assign weight maps for the bones, and then use LW's own dynamics options for cloth, hair, etc. For me Lightwave has been the most stable, solid, and complete application I have ever owned. I've also heard good things about Cinema, for the record.