Why would you want 3D acceleration on linux??? So you can say "I have 3D accerleration on linux goddamnit@!" I have 3D acceleration on my laptop...I only get like 500 fps with glxgears (a nvidia card should get like 2000 or more), but who cares.
Yeah nvidia drivers are easy. radeon's are hell.
There are deffinately two different refresh rates for every monitor even LCDs. One is vertical one is horizontal.