Hey all,
I've used Hackintosh on my PC before, but never had a release as stable and good as this one I'm using now: the iPC 10.5.6 release, installer + live DVD (though a friend of mine reported the livedvd doesn't work for him, I didn't try on mine but we have the same motherboard so it probably doesn't work here too).

I came here to report a crash I had (three times now) in the Voodoo kernel. I'm going to make this post as simple and small as possible right now because it may happen again; I'll edit the post to give it more information.

It appears to be related to ethernet or heavy downloading: when I downloaded Adium first time, nothing happened; when I downloaded Firefox I had the crash, then Firefox finished and when I downloaded Messenger for Mac the crash happened again, two times. I made detailed photo's of the screen for each crash (will attach shortly if possible), the back trace seems the same apart from the exact arguments. I remember the first time I booted I saw a notice about "ethernet card not supported, trying to run anyway" or something, but the second boot was so fast I couldn't really see what it said.

I'm not a mac expert, so if there's anything you miss in this report, ask me! I'll probably be able to reproduce simply by downloading something.

Edit: Okay, there we go. I'll try to get the pictures in a moment. The first line of the back trace is:
0x5bc57c48 : 0x12b08c (0x45bcf0 0x5bc57c7c 0x133119 0x0)
I have had three crashes; I made every number that didn't change across these three crashes bold to indicate what constants and what variables there are between the crashes.
Also, ATM, as a possibly related ethernet issue, I am having a huge amount of packet loss and very high latencies. Of 100 ICMP packets, 19 packets arrived with an average latency of 115 ms. I'm using the nForce ethernet kext of the iPC 10.5.6 release, on my nForce 680i SLI chipset (ASUS motherboard P5N32-E SLI).
Edit a minute later: The packet loss and high latencies are, somehow, suddenly gone. Oh well.

Edit 2: Here's the image. It's quite huge, so everything is easily readable. This is an image of the first crash, I was downloading Mozilla Firefox in the background. By now, I've had four crashes (another one when I went to Youtube and it started downloading a movie - while Mail had been downloading e-mail for a few minutes, but with speeds of lower than 200 kbps, maybe that's important too). If needed, I'll be posting images of the other crashes too. Hopefully this will be helpful enough to fix this crash

Edit 3: Added this to the Google Code project for the Voodoo kernel...

Since I'm using nForceLAN instead of nForcEthernetDriver, I've had no more crashes. I'll report here immediately if I see any more... but if anybody is having this problem, try nForceLAN!