Will try and help some ...

1. You don't have the right kext .... kexts that work in Leopard don't necessarily work in SL.

2. VooDooHDA did not work for me unless I put it in S/L/E

4. You wont see the drive from which you boot on your desktop

5. Try OpenHaltRestart.kext

7. I think I may get the same message .... I'll check next time I boot

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Gigabyte EX58-UD5 - i7 920 @ 3.2 GHx - eVGA 8800GT
Asus P5Q Deluxe - E8400 @ 3.6 GHz - Asus 7900GT
iMac 2.2 GHz - 4 MB