Of all the ITX cases out there, this is one of the best, but with caveats. First up is the PSU, this case can fit an SFX-L, but I wouldn't advise it. Reason being you would lose too much space in front for much needed cable management. I opted for a Corsair SF450, which also happens to be modular. Do not purchase a non modular PSU, you will regret it if you do. There will be far too many superfluous cables that you won't have space for. There are a few slim, slot loading drives available. The LG GS40N is a great inexpensive choice and fits perfectly. Also don't forget that you will need a Slimline SATA/Power cable. These generally come with a Molex connector, but purchasing a Molex to SATA adapter means you can omit the Molex cable from the PSU (hence why buy modular). On the topic of cable management, here are a few more tips: Run the front panel and audio cables behind the PSU (and USB3 header depending on mobo layout). Purchase short SATA cables for SSD/HDD, as the ones that came with your mobo will be too long and add to the cable clutter. 20–30cm should suffice depending on mobo layout again. Finally, have plenty of cable ties so that you can bundle cables together. I even purchased adhesive mounts that can be stuck to the sides of the case. In terms of the build, if you stick to the order specified in the manual, you should be ok. However, connecting the front panel headers might be easier to do before the mobo is mounted. Unless you use tweezers like I did! For my build, I utilised all the fan mounts, so ensure you have a mobo that supports the applicable number of fan headers. SilverStone kindly provide a splitter with the case to help. In my opinion, it's best to go with a low profile CPU cooler, so that you can opt for a fan above it. That way you can keep cool air coming into the case rather than recycling warm air. Remember that the case is designed for positive air pressure, and is vented so that the warm air escapes. In terms of GPU, don't go with anything too big. The case can support it, but it's just not necessary. Choosing a smaller one will also reduce the total weight, as trust me this rig gets heavy. Think 1 or 2 fan rather than 3. That's about all I can think of, and if you follow the rules, you'll have a great rig.