I do not see case, optical drive, cpu cooler (if not stock), windows, etc. Assuming you have all of this already, looks fairly solid.
stock heatsink cause no gaming on this PC, Windows Ultimate 64bit,case doesn't matter that much, and a DVD burner, and about the CPU i thought to go with the famous one, p.s: it's a general workstation.
Understood. For $3 you get 200 MHz more of a cpu. That's hard to argue with given the price is only $3. It's actually the same chip, only it's clocked higher. you also might consider upping your ram a tad for a workstation, depending on what you will be doing with this workstation.
There's a few differences between the builds - the AMD will give you slightly better graphics. However the Intel is a far better CPU and will be better for upgrading when you can get a good GPU like a Radeon 7850. But on the other hand - the AMD has a rarity in its' price range with the unlocked multiplier which you can overclock using the Asrock's UEFI BIOS. That will give you a slight significant performance boost.