What are you using it for?
If you want to do LIGHT gaming and are going to skip a video card (for now?) and just use the onboard graphics, go with a 790GX chipset that's paired with 128 MB of sideport memory - I *think* BIOSTAR adds $10 to the price and calls it the BIOSTAR TFORCE TA790GX
128M
The only other thing the TA790GX seems to offer over the GA-MA78G-DS3H is the addition of RAID 5 instead of just 0/1/10.
GIGABYTE seems to be more popular among the masses than BIOSTAR.
Other than the improved integrated graphics and addition of RAID 5 due to 790GX vs 780G chipsets, the specs on these boards seem virtually identical...I guess that's how you got here
Almost forgot - the GB board has a better Audio Chipset - Realtek ALC889A vs ALC888 on the BIO