I have seen at Voodoo5 6000 in action, complete with 3dfx internally engineered FSAA and T-Buffer programming demos. Great stuff for back in the day, especially in regards to special effects capable via the accumulation buffer effect.
Sadly, the only Voodoo cards I still own are V3 PCI models. I keep them because they are still great PCI cards for 2D work, plus I hit the occasional project needing GLide rendering support.
I would really like to have an Obsidian X24 card.
Robert Richmond