Why the $100 difference in price or almost Identical EVGA MOBOs?

[tvh]

Hello, I am trying to build a new system and I have been doing research on motherboards and I've decided to go with EVGA, now there are two boards in question:

EVGA 122-CK-NF63-TR LGA 775 NVIDIA nForce 680i SLI ATX Intel Motherboard - (newegg - $159.99)

EVGA 122-CK-NF68-A1 LGA 775 NVIDIA nForce 680i SLI ATX Intel Motherboard - (newegg - $259.99)

I've been looking at their specks and they are virtually the same to my knowledge and this is why I am here. What difference features would warrant a difference in price of 100USD? This is where I am lost and need your help. With this system I am trying to be froogle but I want stability and longevity. Please help.

 

[akhilles]

A1 is a well known overclocker, especially for quad. The other revisions are not as good.

 

[Mugen]

The cheaper one is the SE version it set up for core 2 duo specifically and the more expensive one is the A1 version which is for the core 2 quad, so if your getting c2d and your overclocking or not the SE is the one for you.

 

[jsc]

The AR/A1 version is certified to support Penryn. Also, the A1 package contains ALL the cables you will need to build a fully loaded system (6 SATA data cables, extra SATA power adapters, round IDE and floppy cables, Molex to 6 pin GPU power adapters). The T package contains the minimum to put together a working system.