I've already done a fair amount of research and gone through so many changes in my build that I'm fairly confident the following list is what I'll end up with. However, I would like any insights any of you might have that I might of missed or never found out. Feel free to suggest other parts or highlight problems with parts on my list and give me reasons why (No "my sister's, father's, friend's, pig's, owner had this motherboard and it sucked").
I will be using this PC primarily for games. I don't use cpu intensive applications (video editing, etc). I will not be overclocking. I want to keep costs as low as possible. Not interested in the H97 chipset (but you can try and convince me).
Inisght on the saphira mouse is particularly appreciated since it's my most obscure part.
Related question: Will games make more use of hyperthreading technology in the future?
CPU: Intel i5 4570
GPU: EVGA GTX 780 dual FTW
Motherboard: ASRock Fatl1ty H87 Performance LGA 1150
Memory: Crucial Ballistix Sport DDR3 1600mHz 16GB (2 sticks)
PSU: Seasonic SSR-650RM
HDD: Western Digital WD10EZEX (2 in raid 0 and 1 for storage)
Case: Rosewill Challenger
Mouse: Tt eSPORTS saphira
OS: Windows 8.1 64bit
I already have an optical drive, monitor, speakers, wifi card.
edit: I am using one 1920x1080 monitor.
Newegg.com - Intel Core i5-4570 Haswell 3.2GHz LGA 1150 84W Desktop Processor Intel HD Graphics BX80646I54570
Newegg.com - EVGA 03G-P4-3784-KR GeForce GTX 780 3GB 384-Bit GDDR5 PCI Express 3.0 SLI Support Dual FTW w/ EVGA ACX Cooler Video Card
Newegg.com - ASRock Fatal1ty H87 Performance LGA 1150 Intel H87 HDMI SATA 6Gb/s USB 3.0 ATX Intel Gaming Motherboard
Crucial Ballistix Sport 16GB (2 x 8GB) 240-Pin DDR3 SDRAM DDR3 1600 (PC3 12800) Low Profile Desktop Memory Model BLS2K8G3D1609ES2LX0 - Newegg.com
SeaSonic SSR-650RM 650W ATX12V / EPS12V SLI Ready CrossFire Ready 80 PLUS GOLD Certified Modular Active PFC Power Supply - Newegg.com
Western Digital WD Blue WD10EZEX 1TB 7200 RPM 64MB Cache SATA 6.0Gb/s 3.5" Internal Hard Drive Bare Drive - Newegg.com
Rosewill CHALLENGER Black Gaming ATX Mid Tower Computer Case - Newegg.com
Tt eSPORTS SAPHIRA Mouse - Newegg.com
If I were you I'd go for a 4670K if you're set on an i5. I got the 4670K and it's overclocked to 4.4Ghz, but I kind of wish I'd gone for the 4770K now. It depends how future proof you want your build to be.