I got an Intel Hex Core i7 970 last week and I think I did good with the overclocking. What do you think?
I’ve included some relevant (and maybe some irrelevant) information, Idle and load temps and BIOS settings.
 
CPU - Intel i7 970 Hex Core Processor (B1 Stepping) with EK CPU Copper Water Block
EVGA x58 FTW3 Edition Motherboard with a fan added to the Northbridge heat sink.
3x2GB OCZ Gold DDR3 PC3-16000 @ 1720MHz 8-8-8-24-1T Timings @ 1.65 V
 
BIOS settings.  Note: If I have a setting on auto or off or left it at default, I did not include it in this list
CPU host Frequency: 172MHz
CPU Core Frequency: 4308MHz
Uncore Frequency: x22 multiplier. 3791MHz
RAM Ratio 2:10
Turbo Enabled
Hyper threading Enabled
 
Voltages:
EVGA vDroop control: Disabled
CPU Vcore: 1.30000V
CPU VTT: +250mV
CPU PPL Vcore: 1.900V
DIMM VoltageL 1.650V
QPI PPL Vcore: 1.200
IOH Vcore: 1.200V
IOH/ICH I/O Voltage: 1.525V
ICH Vcore: 1.175V
PWM Frequency: 933KHz

GRAPHICS CARDS – (Graphics Rendering)
Two EVGA GTX 470s SC+ in SLI with HeatKiller Waterblock and EVGA aluminum back plate
Core Clock: 725MHz
Shade Clock: 1450MHz
Memory Bus Speed: 3600MHz
 
GRAPHICS CARDS – (Physx Rendering and second monitor)
EVGA GTS 450 SC
Core Clock: 920MHz
Shader Clock: 1840MHz
Memory Speed: 3850MHz

(2) OCZ Agility2 120GB SSDs in RAID 0 (Boot and Programs)
(3) Samsung 500GB HDDs in Raid 5 (Music, Documents, videos, ect.)
1000 Watt Xigmatek PSU
Acer 20 inch LCD Monitor
Dell 15 inch LCD Monitor
Windows 7 Ultimate x64 Edition

WATER COOLING SETUP
My cooling system is a single pump (120 Gal/hr Laing Pump w/ EK V2 Top) that breaks off into two branches. One branch is for the CPU, the other branch for the GPUs. Each branch has their own 120mm x 120mm Radiator. It all merges back together into a common 120mm x 360mm radiator.  It also has a 150ml Reservoir and every fan is controlled by a front bay controller.
 
3DMARK Vantage Score: 38327 (GPU score: 32482, CPU score: 81723)
3DMARK06 Score: 29997
 
Idle Temps for CPU cores:
23C, 34C, 24C, 24C, 34C, 27C
 
Load temps using Prime 95 and Small FFTs:
62C, 66C, 59C, 52C, 67C, 61C
 
I decided to go take it one step further and do a worst case scenario with Prime95 running small FFTs and ran my GPUs on FAH. I did this because I have both my graphics card and CPU liquid cooled. So,
With CPU running on small FFTs and GPU running FAH, CPU core temps:
71C, 73C, 68C, 61C, 74C, 70C.
 
Everything was tested with all three test of Prime95. Small FFTs ran for an hour with no errors. Large FFTs ran for 2 hours. Blend test ran overnight. NO ERRORS or BSODs.

I have no idea what my batch number is. Im gonna try to lower it and see what happens.  I had an issue in which it felt like my performance wasn't stable, but I had the issue (solved) in which only 1.99 GB of ram was available.

@ crossrhoads, I think you're using way more VTT & PLL voltage than you need. You can drop PLL voltage to about 1.6v and VTT to around 150mv. The rest of your voltages look fine. 1.3v for 4.3Ghz isn't bad at all. All CPU's overclock differently and what works for one may not work for another with regards to CPU voltage.