What kind of work will you be doing? Basic office stuff, or more intense computing and rendering?
I'm not a fan of the 1333 RAM. Upping it to 1600 would help some. The 660 will be fine for 1080p gaming, but it's getting a little old now. Also, it looks like it's using the stock AMD cooler, which is a little loud. Any overclocking will definitely require aftermarket cooling. And I may be wrong, but the 760 chipset is pretty old for the mboard. The HDD is a litle small for my tastes too.
You do get a warranty, but does that get voided if you even pop the case open?