Not good at all. Ditch the PSU and look for Antec, corsair, pc power and cooling, silver stone, and ocz for quality PSU's. For $300 budget your going to get a pretty much crap PC.
By the way, that psu is horrible. Don't use it whatever you do.
He doesn't do any gaming? Here's $295 after $25 MIR.
To be honest, that's about as cheap as its going to get... You can take out a ram stick if you want.