Core i2500k best motherboard

http://www.evga.com/products/prodlist.asp?switch=5

EVGA products are superb, excellent tech support as well as customer service! (For upgrades)

The best cheaper boards for the i5 2500k right now are definitely the ASRock boards. Buy one soon and you get an extra year of warranty. That said, Newegg has a sale right now on the ASUS P8P67 Pro ATX board for $179.99 with free shipping.

Here's a link for the above board: http://www.newegg.com/Product/Product.aspx?Item=N82E168...

This is a very nice Asrock board too: http://www.newegg.com/Product/Product.aspx?Item=N82E168...

I am also wondering about this..How do we know the best mobo for overclocking the SB k-series?I do remember 1 rule in OC and that is not all mobos are created the same.

If you are going to follow a guide, I would suggest getting whatever board the person making the guide used (usually ASUS). If you are doing it on your own, both ASUS and ASRock are good OCing boards. ASUS has more "bells and whistles" while ASRock has much more "bang for buck."

Personally, if I was paying full price, I would get either the ASRock Extreme4 or Pro3. That said, I would have grabbed that ASUS P8P67 Pro for $179 with free shipping if they had that when I was buying a motherboard (I picked the Extreme4 and am happy with it).

I have an Asrock Extreme 4 with the 2600K and does what I need it to do (i.e. easy overclocks)

but with this new line of processors the motherboard isn't as important as it used to be. I would just recommend picking a P67 motherboard with the features you want. Once you choose the features you would like (2x SLI/Crossfire, no SLI/Crossfire, 3x SLI etc .... higher memory frequency etc.) just buy it and it will overclock the CPU fine.

gigabyte has this bios backup feature -- if you really screw things up it reverts automatically to stable settings

they all do very well..if you want something that will give you great performance and features for a low price..check these out
P67 Extreme4
http://www.newegg.com/Product/Product.aspx?Item=N82E168...

P67 Extreme pro (I've seen people get a good 4.6Ghz on this board)
http://www.newegg.com/Product/Product.aspx?Item=N82E168...

P8p67 LE (Another inexpensive board brought to you by asus..and, good for oc as well)
http://www.newegg.com/Product/Product.aspx?Item=N82E168...

I'll vouche for the Gigabyte UD4. It's built like a rock, looks sweet in all black, and uses the old school bios (only a plus if you are used to it).

The Gigabyte UD4 is a great board. I like the dual BIOS feature, if something goes wrong during a BIOS flash you can easily fix it.