Here you will find mods for a few older games and links to drivers for various Mac video cards. I hope these help you.
Use the files on this page at your own risk. I will take no responsibility your use of these files.

For MacGuru's players there is a special files section located here. In there you will find some files you might need to play on the MacGurus server. This is a password protected page and you use the same password to load this page as you do to play on Macgurus UT server.
Here is my Unreal Tournament .ini file which will enable OpenGL rendering in UT! This will work with either nVidia GeForce cards OR ATI cards or any other card that supports openGL.. This is the only way to play UT. Beats the pants off RAVE rendering and lets all say it together.....software rendering SUCKS! Anyway if you have an installed and running UT just swap this UT .ini file for the one in your UT folder and your set! If you have just installed UT start it up first let it choose a renderer then shut down. NOW swap the .ini files. Restart!
A couple of notes:
1 Make sure you are using version 4.36 of UT. If you have an older version you can update for free here.
2 For OS 9 Ram allocation: Find out how much ram your system needs, add about 40 MB's to that # subtract the result from your total ram and give UT whatever you have left. Example: you have 768MB and your system wants 80 MB then you will want to give UT about 650 MB of ram to use. (768-80-40=648 no need to be hyper accurate) The reason for this is that when you start an openGL based game the openGL extensions asks the system for more ram and if you have given all available ram to the game then there won't be any for openGL and you will get poor performance if not a crash.
As you can see from the screenshots (at the bottom of this section) I am getting GREAT framerates. The 2 shots showing the frame counter are from my GeForce 2 and the Snow shot is from my GeForce 3. I included this because of a review I read that said they could not get the GeForce cards to perform and that they would not properly display the snow scenes from the Ice Station Zeto map. I do not seem to have that problem....maybe they need ME to set up the test machine they used :-)
Here are the Frame Rates:
Card, average/peak fps, Renderer (Peak rates are while lying dead and staring at the floor, something I seem to excel at!)
ATI Rage 128: 18/26 using Rave, 33/48 using OpenGL
VooDoo 5: 30/45 using Glide
GeForce 2MX: 65/283 using OpenGL
GeForce 3: 90/348
This was online against other people, in practice mode offline the GeForce 2 averaged over 100fps. The GF3 over 140
The V5 was in a B&W PowerMac G4 500 (upgraded) only and the nVidia GeForce 2MX & 3 was only in the Powermac 733. The Rage card has been tested in both machines with similar results.
UPDATE: I now have an nVidia 6800 ultra card and am embarrassed to post the frame rates
GOT LOW RAM? If you have 128MB or less of total ram then I suggest using RAVE rendering. Yes RAVE IS supported by the GeForce cards and many other cards other than ATI.
For GeForce and all other cards that support RAVE, use this .ini file.
For ATI cards use this .ini file.
TacticalOps! If you are running the TacOps umod here are some .ini's for you
For OpenGL TacOps use this ini file
To run RAVE for TacOps on non-ATI cards use this ini file. (this would be for low ram situations)
Screenshots

Well I do not have Deus Ex running in OpenGL yet. BUT WAIT!! For the low low price of only $149,995.95 you can have this Deus Ex RAVE .ini file. This will make Deus Ex run in Rave on all nVidia and other non-ATI cards. Install is the same as UT so if you have an installed and running Deus Ex just swap this Deus Ex .ini file for the one in your Deus Ex folder and your set! If you have just installed Deus Ex start it up first let it choose a renderer then shut down. NOW swap the .ini files. Restart!
If you have an ATI card Deus Ex should install and run fine in RAVE.
This file is Har-de-har-har-ware, you laugh at my price and the file is free :-)


Get the latest drivers for your nVidia GeForce card here.
3DFX VooDoo
Of course, on a VooDoo card you will always want to use Glide as your Renderer! Remember, the more ram the merrier!
Grab the latest official drivers, version 1.1.2, here.
Grab the final drivers, version 1.1.3 beta, here.