Put this together for you.
CPU: cheaper than a great i7 but it's still a really good processor.
CPU FAN: Use this myself and it is everything you want a cooler to be while still a very good price. if you eventually overclock you'll still have great temps.
ASUS: great motherboard. asus is pretty reliable in that field. not much to say about that. it does contain many features.
RAM: good deal on that stuff right now from NCIX. 8 gigs is obviously all you'll need for any sort of gaming what so ever. faster is better @ 1600 MHZ
SSD & HDD: i built a rig for a buddy using that SSD and will vouch for it. it's great nothing sketchy about it and you really can't beat it with that price. 120 GB for your games and OS. The HDD i have myself 7200 RPM is just a good standard won't really be a problem to you. 1 TB allows for PLENTY of music, games, videos, photos, etc.
GPU: i've been wanting to talk about this one (; the new R9280x. omg. i'm jealous (x haha. anyways, check the benchmarks for yourself... its amazing.
CHASSIS: I use this case and have experienced great airflow throughout. easy mounting and loads of fan spaces. easy cable routing as well.
PSU: plenty of wattage. good make and model 80 plus gold.
MONITOR: I really just threw one in there cause i don't know what you size you want or anything. its your call. good monitor though.
PERIPHERALS: For the price that mouse is great, two extra buttons and it glows red. the keyboard has great reviews just about everywhere you buy it and i'm sure you'll be happy with it.
PS. Everything glows RED (:
TL;DR - its a good pc and you'll save around $500 out of your $2000 with all the mail in rebates and what not