Nice system!

Voodoo3 is a great card, and getting difficult / expensive to obtain. I suggest having a fan nearby, to possibly prolong the longevity of the card. I use 2x 92mm fans and some AliExpress brackets in my similar system.

In my experience, finding a junk (maybe nonworking) beige computer with a beige optical drive is somewhat easier to find than a Voodoo3. Perhaps you'll be able to find some beige drives (without opening your new in box drive) , if that matters to you.

I got a PCI slot fan stuffed in blowing at the voodoo3 card, anything to protect that card. And I've gone ahead and broke the seal on that cdrom drive!
Only thing I dislike about the case is the molded in Systemax tiger logo but since it was 25 for the case and a ms-6340 mobo (needs recapped) plus a couple of other parts I think I'll live with the label.
This system will get stuck next to my athlon xp 2600+ with GeForce 4. Ti4200 system. And next I'm building a pentium I system.

So what do you play on this?

Star wars episode 1 racer
Rogue squadron,
Quake 1,2,3
Ultimate Doom
SimCity 2000
SimCity 3000
Doom 2
Final Doom
Heroes of might and magic 1,2,3
Duke 3D
Final fantasy vii
Heretic i
Heretic ii
Hexen
Tomb raider
Lode runner
A few other random Dos games and I'm always looking for more

And before anyone says it, I know none of these games require a 3dfx card but I had one back in 2000 so this is memory lane for me!
I do have a bunch of AGP cards to select from
Ati rage pro
Ati rage 128 32mb and 16mb
Matrix g400
Nvidia tnt2
Nvidia tnt2 m64
Nvidia GeForce 2mx 400 extra slow eBay edition
Diamond fire gl1 best image I've ever seen in an AGP card on an LCD
3dlabs oxygen vx1