I've decided (after several members here beat me over the head) to drop an Allendale C2D into a GA-965P-DS3 (rev. 3.3) board.  Most recommended I get a E4500 c2d ... but I'm also looking at the E4600.
 
Correct me if I'm wrong here, but since the 2.2GHz e4500 has an 11 multi and the 2.4GHz has a 12 multi - wouldn't it be easier to OC the e4600?  That GA-965P-DS3 (rev. 3.3) board can be upgraded (with a bios update) to accept/run at FSB1333.  With a 12x multi, theoretically, couldn't I up bump the FSB and get 3.6-3.9 easily ... remember, I said theoretically ...    
 
Wouldn't it be an easier OC to go with the e4600?  I'm trying to overcome the 2mb vs 4 mb deficit (Allendale vs Conroe).
 
I'll be using an ARCTIC COOLING Freezer 7 Pro and 2GB of CORSAIR XMS2 DDR2 800 (4-4-4-12) RAM.
 
Thanks for your advice and "corrections" (be gentle) ...  
 
Edit:  I'll run XP Pro ... with a nV 7900GS video card (already have all the above parts, except the cpu)

No, The E4600 would not be easier to OC.
 
You won't hit any FSB walls with the E4500.
You are going to hit the CPU wall before a higher multiplier will help.
 
If you simply set your board to run 1:1 and set your board to run at FSB of 1333 your CPU will hit 3.66Ghz.
 
This is likely higher than you will want to comfortably run this chip.
So, the more expensive chip is likely not going to get you anything but a higher bill.

I agree with zenmaster; E4500 gets my vote.

Only thing theoretically, a x12 multi would be easier to get to 4ghz, but for it to run stable and boot up correctly, especially on air... that would be a different story.
 
I agree there is a comfort zone that these chips to run, but then it may be more to the MB side of things for running into FSB walls.  The 800mhz FSB strap doesn't even allow my E4400 chip to run 3.2ghz.... It boots up but reboots when windows is starting.  But I'm happy at 3ghz.
 
I agree the 4500 will save you money, and should OC as well as the 4600...  Unless your getting a really good cooling system and want to OC like crazy, then the 4600 would be a better choice, with a pin mod done on it perhaps.  

Agreed.

Grimmy, out of curiousity,  
 
Is your E4400 the L2 or M0 Stepping?
 
The E4400 comes in both flavors.
The E4500 comes just in the newer M0.
 
I'm trying to add to my mental Data banks what speeds different folks get on different chips.

Mine is the L2 stepping.

So, do you think I could get an E4500 up to 3.2 GHz on that ARCTIC COOLING Freezer 7 Pro?  I don't want a vacuum cleaner - so even 3.0 GHz would be ok.

I believe CompuTronix uses the Arctic cooling freezer  pro on his Quad, which is OC to 3.6ghz.

I think you should be fine with it.  Perhaps he may see this thread and advise.

Edit:

I re-read his config, he's using:

ZEROtherm / Butterfly BTF90

Which is similar to the freezer pro, but I could have sworn I read it somewhere.  . o O (my brain is failing)