I wanted to build a HTPC on a budget, so I set out with a $500 build in mind. It had to resemble a console and have Kodi (XBMC) and Steam installed. I exceeded the budget but that is OK.
Update 12/21/15: I replaced my old Sapphire Radeon HD 7870 OC Ghz Ed with a MSI Radeon R7 370 2GB Armor 2X that I got on JET.com for $119.00 shipped. I sold the 7870 for $75 on Amazon. Even though both cards are very close in specs, I wanted an updated card to take advantage of newer AMD technologies. Plus I like the black and white of the MSI Armor 2X card.
CPU + MoBo: Micro Center had a combo deal on some of the A series APU's from AMD. I chose the brand new A10-7870k quad core APU. It has a Radeon R7 gpu on the die and is capable of running casual games at high settings and more serious games at mid settings. With this combo, I chose the Asus A88XM-A mATX board. It's well made and the Asus BIOS is nice and clean but I wish the MoBo had heat sinks on the MOSFETs.
Case: My case is the Thermaltake Core V21. I really like this case as it has plenty of room for cable management and all the panels are movable with a window on one.
CPU Cooler: I love the look and quality of the Cryorig H7 and that it has zero RAM interference. It cools fairly well on a light OC (4.2Ghz). I added another Cryorig QF120 Balance fan for a push/pull configuration. I am curious if the extra fan makes much of a different though, I might try to test it with and without the pull fan. It could be causing a bottleneck.
RAM: Micro Center had a deal on the EVGA SSC RAM 2400, making a 2x4Gb set the same price as 2133 speed RAM. So for the price, it was a good deal.
PSU: I know the CX series PSU's from Corsair get a lot of hate on here, and they may be deserving in some higher end builds of the concern, but I think it will be a good PSU for this build.
GPU: I had my old Sapphire Radeon HD 7870 Ghz Ed sitting around from my previous gaming PC. I sold it online and picked up a MSI R7 370 for $119 on Jet.com. I love the white and black color of this card. Since I plan on playing light games on this system, it was a good addition.
SSD: This was a great deal that I found on BestBuy.com. The PNY XLR8 240Gb is for the OS and a few games.
HDD: Micro Center has the WD Caviar Blue 1Tb for $39.99 in store. This will be used for media and other files.
I added some UV Logysis 12" Cold Cathode Tubes. They were cheap and I will add some white cable extensions later. It may look a little tacky from these picks but it actually lights up the whole room in black light. It's 1980's fabulous!
Everything else is pretty basic.