its not too far off of what i have sitting behind me. on games that are 2 years old you will playable frame rates at max settings,at 1920x1080 if you dont max out shadows. newer games you will need to go more twards mid settings.
if your in the US i must say a few things about the parts.
the prices on a bit of it seems a bit high. the Ram, and gpu. maybe the mobo (im not gonna look it up though. )
now considering that you live anywhere i must say
- if you go to the 955 Black for the processor the gaming performance will stay the same. and you get overclockability so it can even go up a good bit.
-the ram is ok but im not a fan of patriot. id say get the cheapest 8GB ddr3 1333 you can. cuz ram speed will only get you a few more % performance often only being a single frame per second more. its not worth the xtra money for the faster stuff.
-a 5770 should be costing you around $120 or less no matter where you live but more importantly its getting to be a dated card. you can get a 6850 for just $30-40 more and its a lot better at post processing. so you can keep your setting cranked up a good bit more. save the money on the cpu and get a better gpu.
-you should heavily consider getting a motherboard with an am3+ socket and a 900 series chipset. there are two on newegg.com for the same price as what you have listed.
this way you can plug in a bulldozer cpu when ever you want to upgrade. saves you money later. otherwise ive bought several 880g motherboards that cost $20 less than what have listed and they have better features.
-nice hard drive, i only buy western digital and samsung. everything else tends to die on me after a few months.
-cases rarely matter. just make sure its not a flimsy one. otherwise it might not hold up especially when you put on the backplate for the motherboard. ive dented a few in a bad way from the damn backplate.
Yes the parts are compatible. But I still recommend a X4 955 at $119. It's going to be way faster than a slow 1055T, use less power, create less heat, overclock much faster. 2 extra cores won't help you in gaming, but clock speed will.
You still need a power supply.
$150 for a 5770 is very high. I'm seeing 6770's on Newegg for $89 and $99 after rebate.