A few words (and sorry's) before I begin - This was my first build for someone else and also my first with all new components. Some choices were a bit, ahem, inexperienced. However, it showed up working in the end, so everything was alright. Sorry that I don't have the prices. Some of the images are potato-quality. Finally, I didn't do much testing so I don't have temperature results. Sorry.
This computer is in use in a car shop. It's very dusty and not air conditioned. The users are very pleased with it, even if I could have chose the parts better.
CPU: Should have gone with the A-Series, but it overperformed for the job anyway
Motherboard: For the older AM3+ CPUs, this was a good board. I wouldn't trust it to more than a FX-4300 now.
Memory: Don't buy this. You've been warned. It works just fine, but it's called seizure RAM for a reason.
Storage: A caviar black was a bit of a strange choice for the price point, but this computer wouldn't be in the friendliest of working conditions (90F+ ambient on some days). Not only is it very durable, it's also very fast. The computer boots up faster than most and random writes (subjectively) feel very fast. That comes at a price, though. The only con is that it's very loud when spinning up.
Wi-Fi adapter: It works well for the application. Remember to plug in the antennae, otherwise you're in for a world of panic.
Case: This case was a pleasant surprise. No sharp edges, keeps itself cool even with just one 80mm fan. There was a bit of cable management space. The front panel LEDs are bright. It's also a bit on the flimsy side, but nobody spends their time messing with the side panels like I did while building it. For the cheap price, I'm a bit surprised that I didn't have to give a blood sacrifice!
Power Supply: The power supply included with the case has exceeded my expectations. It's still chugging along happily.
Optical drive: It was cheaper when it was purchased.
Issues: The case doesn't come with fans, but I had a spare lying around.