A comment about the Project Viewer "Alex Ivy"version 5.1.0.503537, available here: http://wiki.secondlife.com/wiki/Linden_Lab_Official:Alternate_Viewers
I've always played with different viewers, and betas, but folks, this is simply an incredible viewer! I use the Mac version, and it rezzes my very complex home sim faster than anything I've ever seen before, brilliant colors and sharp images, movements incredibly smooth. You simply have to try this! Can't say enough good things about it, despite being an early beta, and look forward eagerly to a release. Well done, LL!