Hi there,
I'm about to get a Power Mac G4 for free, so I think I'm set to jump on the MorphOS bandwagon. To be more specific what I'm getting is the innards - it comes from a fella who wants to use the case for some sort of crazy project, so I'm getting the mobo, graphics card, RAM and PSU. The parts have been a bit hard to identify, but I finally got access to the case which happens to be the Mirrored Drive Doors model and on the back it says Model no. M8570 , from which I assume it is supported, but the graphics card isn't clearly marked. Can I assume it is ATI in that model range? If not can I just pick up any of the MorphOS supported cards provided it's AGP? I'm also curious if those cards will support 16:9 LCD screens.
Also I could use some advice about the RAM modules I should look for should I try to upgrade that.
Thanks in advance for any suggestions. 
Dementhor
You can't assume that the video card is an ATI Radeon card, as some of the G4 PowerMacs came with NVidia video cards and the Radeon card was an optional upgrade item. I did not take the time to look up on the Apple site which model the M8570 is, but you should do that before you spend any money on RAM upgrades, to make sure you get the right modules for your motherboard. If your video card is not a MorphOS2.x supported Radeon, try to find a 9000Pro. It will probably be the easiest Mac version to find that is compatible and has decent performance. Yes, it will support 16:9 LCD screens, as I think all of the MorphOS2.x supported graphics cards will also.
Congrats on getting your free G4 PowerMac and good luck setting up MorphOS2.x on it and having some fun.