Best settings for Asus P5Q Dlx & Q9550 plz?

[gladius]

Hey peepz,

Need to overclock 2 rendering rigs for a friend, and i'm not that up to date as for 45nm and P45.
We would like to achieve 471mhz bus meaning 4Ghz for 24/7 load.
Now I know I'll need a vcore of about 1.35-1.4v to get that, but i'm unsure about the rest of the values.
What's the best FSB Voltage? PLL? GTL? NB+SB? VID? DRAM?

The systems spec is as follows:
Q9550 (dunno stepping)
Thermalright U120E + MX2 + Scythe S-Flex 1600RPM
Asus P5Q Deluxe P45
G.Skill 8GB 1066mhz (4x2gb) F2-8500CL5D-4GBPI
ATI Radeon FireGL V3600
WD 640GB AAKS
LG GH22
PCPOWER&COOLING PPCS500 PSU
Antec Three Hundred case + 2xScythe S-Flex 1600RPM
Vista business 64bit

Also what's best to check stability these days? Realtemp + OCCT? notice it's 64bit machine.

Lots of thanks if you can help!