Looks like you bought a
Thermaltake TR2. $90, no 80+ efficiency certification of any sort. The same PSU is available on
Newegg for $65, +$2 shipping. :| It's not a terrible PSU in the sense that it won't explode on you... but it's an extremely low-end model, and the value is not good, especially since BestBuy's is overpriced.
The CORSAIR Enthusiast Series for $90 that TA recommended is not bad, but you don't even need that much power for your system. If I were in your shoes and felt like buying a better power supply just in case, I'd go with an
Antec Neo ECO 520C. $55, +$3 shipping. Sure, the rated power output is lower, but it's a high quality PSU for the price. Lower quality PSUs often don't hit their rated power (dunno if the Thermaltake does) and it's not like you have power requirements that high anyway. Here's a detailed
technical analysis of the Antec Neo ECO if you are interested in that kind of stuff. :)
But that leaves the question for the video card...
$300 - $90 = $210.
Did you really spend ~$200 on a 5770? :|
The 5770 is a good card, but only when it costs you around $110. If you want to spend more to get more performance, the 6850 is a much better idea. Like
this one. $175 +$8 shipping. Less if you do the rebate thing. And it's not even the cheapest 6850--it has a nice dual fan design.
[Image: http://img51.imageshack.us/img51/1622/crysish.png]
Taken from
AnandTech, with me adding the silly text.
So imo, you should either:
1) Return the PSU and GPU, and buy a cheaper 5770 from Newegg, or..
2) Return both and buy a cheaper PSU and GPU from Newegg.
Or if you can't be bothered with all that and you don't care, then your current setup will work fine, at least.