Just to bring this to your notice that I bought an ASUS board with 780G chipset M3N h- HDMI. It could not send display to the motherboard. I looked up on the net and apparently I was not alone and neither was ASUS. Its a common problem on a HD 3200/780G chipset. Please google 780G problems and you will find them. I am at work so cant send you the links right now, but just wanted to bring this to your notice. I still dont know if it was the motherboard or the chipset. So, I just RMA'd it for a Gigabyte 790GX motherboard (MA 790GX UD 4H), which has HD 3300 onboard and its running fine. This system was for my brother.
Then I bought a system for myself with ASUS M4A 78T-E having 790GX/HD 3300. It runs great.http://www.asus.com/product.aspx?P_ID=cf8IZzbU4m6GHKnW&templete=2
So, please look into it more and research before you buy a mobo with 780GX chipset. Its not necessary that you will face problem with it, but what if you do???