I've only owned one desktop in my life, a gateway that I bought from Best Buy in late 06. Other than putting some extra ram in there, and replacing the video card, I have no experience picking parts or building a PC. It's well past time for me to upgrade though, and I've been doing a little research and reading reviews for stuff trying to figure out what to get. Because I know so little, I was hoping to get some advice from you duders. In terms of cost, I intend to buy this thing a part at a time, so I don't really care how expensive it gets. The only problem I can foresee is paying for the bigger parts, because it may be hard to get enough money together at one time. Obviously I wouldn't mind saving money where I can.
As far as gaming goes, I intend to use this machine for every PC exclusive game over the next several years, and I'd like it to run these games decently, but I don't really mind using lower settings in the future. I also intend to use this PC for some hobbyist game design. I mostly use Flash, but I'd also like to try out Unity, so I need it to run both of those programs capably. I may decide I want to run similar but slightly more intensive programs later on as well so I'd like to build for that scenario. Also I need it to have an HDMI port so I can hook it up to my tv. Other than that my only desire is for this thing to be as fast as possible, because I'm incredibly impatient.
CPU: Intel Core i7-4770K 3.5GHz Quad-Core Processor Decided to go for the i7.
CPU Cooler: Noctua NH-D14 65.0 CFM CPU Cooler Switched from liquid to air, since air is apparently quieter, and from what I've heard easy to set up.
Motherboard: Asus Z87-A ATX LGA1150 Motherboard I know nothing about motherboards. I've heard Asus is a good brand, that is why I picked this one.
Memory: Corsair Vengeance 16GB (2 x 8GB) DDR3-1600 Memory Downgraded and doubled the ram. Shouldn't be too expensive or difficult to upgrade so I could always replace it later on.
Storage: Samsung 840 Pro Series 256GB 2.5" Solid State Disk Kept the brand, doubled the space, upgraded the type. Since it helps speed I figure it will be worth it. Seagate Barracuda 1TB 3.5" 7200RPM Internal Hard Drive My portable hard drive is a seagate, and it hasn't broken yet so I chose that brand.
Video Card: Asus GeForce GTX 770 2GB Video Card Upgraded the gpu, it wasn't even that much more expensive than the original.
Sound Card: Decided not to get one.
Case: Corsair 500R White Since led's aren't difficult to disable, and the other two were so big, I decided to get this one. Cheaper too.
Power Supply: SeaSonic S12II 620 Bronze Upgraded this.
Optical Drive: Asus DRW-24B1ST/BLK/B/AS DVD/CD Writer
Edit: Meant to put this in the PC forum. Oops.
Edit 2: Updated the list of parts.