A question regarding the PC's CPU. Does it generally make a difference if its i5 or i7? What differences do they generally make?
i5s are generally dual/quad core and don't have hyperthreading. i7s are all quad core and all have hyperthreading. Hyperthreading is cute, and will help out in some situations with your computers responsiveness (basically if there are multiple unrelated things (and i mean really low level computery unrelated things) it will sometimes do them both at once, making it look like more than a quad core).
tl;dr: if you don't already know what it is, you aren't likely doing anything technical that might see the real benefits of that kind of technology.
These days for gaming you'd probably want a mid-high end i5 quad, 8-16GB of ram, and spend 2-300 on whatever graphics card whirlpool likes best in that priice range. Don't spend more than $100 on a motherboard, and don't get a combined case/power supply package because 90% of the time they package a crap power supply they want to move with it.
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