Recomend me a C2D

[Johnny|lucidcomposure]

So I currently have this system which recently fried its self thanks to Windows Vista constantly locking up (vista fanboys stay away)

I'm looking for a fast but cheapish C2D system.

Currently

ABit AN8 32X (now fried)
AMD Althon x64 2 4400+
X1800XT 512
OCZ 1024 PC3200 Platinum Ed 2-3-2-5 x2
Enermax 500 Watt Liberty

I wanna switch over replacing as little as poss.
I see a lot of people getting good results from a
"Intel Core 2 Duo E6600 "LGA775 Conroe" 2.40GHz (1066FSB)"

I'm basically thinking CPU, Mobo, Memory

How will the E6600 compare to my current AMD 4400+ ?

 

[Johnny|lucidcomposure]

Sorry I actually did mean the
Intel Core 2 Quad Pro Q6600 "LGA775 Kentsfield" 2.40GHz (1066FSB)

Didn't see there was a E and Q.

So How much more faster and able is the Q6600 over the one I have? Is there any charts or user experience I can go off to get a undestanding if its a worth while upgrade?
I won't be overclocking so just good fast solid memory is good enough for me.

Also

What can I get price wise for (2nd hand)
"Abit AN8-32X
"AMD x2 64 4400+
"OCZ 1024 PC3200 Platinum Ed 2-3-2-5 x2