[Solved] Which motherboard should I get?

Hi, I am planning on building a new pc, but atm I want to get the first 2 pieces. The case and the motherboard. So I am looking on a suggestion on a motherboard, that will be up to date that can support 2 graphics cards, 8gb ddr3 memory and an i5 or i7 sandy bridge processor. I was considerin these 2, but am up for suggestions.

MSI P67A-GD65 (B3)
http://www.newegg.com/Product/Prod [...] 6813130574

GIGABYTE GA-H61M-D2P-B3
http://www.newegg.com/Product/Prod [...] 6813128482

Also I was gonna tempararly hook up some old parts from my previous computers just to be able to use the internet and what not. if there was any virus's on the oldp parts would they infect the motherboard?

MSI P67A-GD65 (B3) good for overclocking SB K series

Scratch GIGABYTE GA-H61M-D2P-B3. It has 2 X16 slots BUT when both slots are used they are x8 and x4.

The MSI board supports x8, x8 which is OK

Concur with going with a Z68 MB over the P67
Might consider: http://www.newegg.com/Product/Prod [...] 6813157250

@ danraies - They sure made it sound that way. I think it does work that way on a SB laptop with a Dedicated GPU, But not so sure it works well on desktop. If Monitor is hooked to the Dedicated GPU, How is the Output of the IGP getting to the Monitor, unless you hook both outputs up and then when the "computer" switches Outputs, the Monitor also has to switch. BUT still standby my Recommendation of Z68.

also is pci gen 3 backwards compatible? for maybe a 460 gtx or 560 gtx?

Even if your monitor is plugged into the discrete gpu, there is still a program...virtu I think it's called...that runs in the backgrond and will have your machine automatically use the igpu for graphics when the discrete graphics are unnecessary in order to save power. You don't have to have a cable plugged into both ports or anything like that.

Best answer selected by alltheicons.

@ danraies - Yes virtu is the software; However it requires that the monitor be plugged in to the Motherboard Video output connector, not the Dedicated GPU, (From SB CPU GP). This means that on the Z68 MBs that do not provide a Video out connector from the intel SB IGP you can not use it. Reason I went with an Asrock Z68 Extreme4 as intially Gigabyte did not off a Z68 MB with hdmi out from motherboard - Their idea was that ANYONE how would go Z68 and Ix-xxxxk would ALL install a dedicated GPU - Subsequently they found the errors of there way and now have some with MB hdmi out.
Ref: http://www.anandtech.com/show/4199 [...] -platforms

Added: Using this feature will result in a "small" performance hit (Quotes are for there words, not mine, have no idea of real Hit) when in 3D mode. as the GPU output has to be routed thru a additional layer- The Frame buffer for the Internal CPU IGP.
My quess, Most advent Gamers are not going to take a hit, no made how small.

@RetiredChief that's interesting, thanks.