alright so im a new pc gamer and i need some help. i need a new gaming pc that is about 700-800 dollars. i will be building it myself and i need their to be a good gpu and a lot of hard drive space if possible.
Try this. The above build is a very solid choice. I don't think you will need a 600w psu though.
You could go either way. I don't really see the need for a better motherboard unless you wanna overclock and get a "k" version of the i5.
Here's the thing about the power supply - I am very cautious about the power supplies I pick. Having more wattage than you need doesn't hurt anybody, but I've seen what happens when you have the bare minimum or too few watts - it causes system instability and can lead to power failures. For a 7870 you don't want to take any chances.
^I'd go with an h77 chipset motherboard (b75 can't even have overclocked ram faster than 1333MHz), and for sure, one that's not Micro ATX.
B75 is useless on a gaming rig. It's meant for business systems where you don't need the overclocked RAM or the extra USB ports and things of that nature. It's better to go with H77.
Unless he is overclocking paying the extra money is pointless when it can be put towards other stuff. And corsair is the best PSU brand there (same as seasonic) and im am very confident that 500w will be more than enough for just about any 7000 series card