that is not worth 1300
with the 1300 you can build a better system that would outdo this system in everything.
if you got a 300 watt PSU you can never run an SLI setup the actual computer right now will barely be able to run any games without crashing, the PSu is horrible and the graphics card is bad
go for thishttp://www.newegg.com/Product/Product.aspx?Item=N82E16883229150
if not build your own it isn't very hard