I hope your aware that that i5 is a non-K edition chip, so you can't overclock it.
If you already know that, then as far as the processor is concerned, its good. Haven't bother to open all the other links though, coz i'm lazy
Might be helpful to get some suggestions if you list out the names of the actual parts used, and their price, rather than posting links here
I'm pretty sure this PC is meant for gaming but if I was you I should change a couple of things.
You graphics card is waaaaay to bad. I'd rather go for a GTX 670 if you have the money for it, but I'll recommend a 560 Ti or a 660 or something.
If you wanna overclock you should go with the i5 3570K.
Motherboard is fine, PSU is fine, hard drive is fine.
I would change your memory to a 8GB (2x4) 1600MHz, because you don't really need more unless you're gonna do some heavy gaming or video editing.
The last thing I would probably change is the case to one of the Cooler Master HAF series, but that's just personal preferences.
ok so i have updated the cpu to a 3570k like you all said and as a better graphics card would a Galaxy GeForce GTX 660 GC 2GB be alright the gtx 670 is a bit to overpriced
It's worth noting that you won't be able to overclock on a b75 motherboard. And if you're not going to overclock, then a K processor is pointless. Also, if you're going to overclock an Ivy Bridge processor, then you need an aftermarket CPU cooler.
Personally, I think that if this is your first time build, and if you aren't the type of person who enjoys tweaking system settings, then you should probably avoid overclocking. Some people do genuinely enjoy overclocking, and there are performance benefits, but the benefits aren't so massive that you should feel obligated to overclock.
In this case, overclocking represents a non-trivial extra expense -- an upgrade of your motherboard chipset (from b75 to z77), an upgrade in the processor itself ('K'), and an extra $35+ component (aftermarket heatsink). You can build a spectacular computer system for $1100 (provided you already have a monitor/keyboard/etc), with or without overclocking the processor -- but if you do buy the option to overclock, then you'd best use it, because otherwise you're just wasting money that could be invested elsewhere.
For a non-overclocking, $1100 gaming system, I might do something like this:
1. The build does not include an operating system. If you need an operating system, then you'll have to free up ~$90 for Windows Home Premium OEM (64-bit).
2. If you want to improve pure compute/game performance at the expense of general responsiveness, then you could easily drop the SSD in favor of a Core i7 and/or an HD 7970 graphics card. The qualitative benefits of an SSD (even in game loading screens) outweigh the benefits of the better CPU/GPU though, IMO. If you have a business-related reason to prefer a better processor, then you might be able to wedge an i7 into the build by cutting corners elsewhere.
3. Likewise, if you're dead-set on 16GB of RAM, you need to shave ~$40 from the rest of the build.