Use this, AA or nothing. Use VT for the Savage2000. Turn this off for benchmarking. 2X may be unstable on LX motherboards. 4X is currently unimplemented.
Negative numbers improve image quality.
1 will be faster but also possibly less stable. Must have OS for it to work at all. Don't forget that some of these may be unimplemented currently, and it has been indicated to me that some of these settings are purely display settings. S3TC is obvious. What I'd eventually like to do with this guide is to make it into a general registry tweaking guide.