I installed 10.5.2 rev. 1 and I have a couple of issues:

When installing I need to have an IDE drive plugged in, not really an issue but still...
After installation I can't boot (same with GUID & MBR, tried both). Need rd=disk0s1 when booting from the DVD
Network is SLOW (rtl8139 pci). I have a nforce network card too, but it doesn't seem to load it or so
Can't load NVinject, says something about an undefined symbol in IOKit.kext (looks like a mangled C++ symbol)
Even though I picked 9.2.0 kernel, it installed the 9.0.0 kernel... ideas?

That's about it for now, otherwise seems quite nice Thanks!