Even the FX 9590 (AMD's top CPU) gets its arse handed to it by the 6600k in gaming. Sadly AMD has simply not stepped up to the challenge for the past 3-4 years. Zen is probably going to change that but Zen isn't here yet nor is it expected to be much more powerful than Intel's Skylake and upcoming Kabylake processors.
As for SSD, personally I find the much lower load times worth it, and we're not at the point where you need 1TB of SSD storage. It's a few games + the OS that generally benefit a lot from being on an SSD, most games don't have huge load times. Especially the OS becomes much more
responsive when it's on SSD.
It's not really that
Corsair PSUs are bad, they have some terrible models and some great models, with the great models being
sorely overpriced when there's alternatives from EVGA and such that offer
literally the same quality at a much lower price. Personally I think of Corsair as the Apple of PSUs. There's also some bias against the HX series, something to do with many units being defective and causing damage I think? Really there's no reason to get an HX PSU as there's said alternatives from EVGA which are awesome and other series such as the RMx and RMi which are also amazing PSUs.
No, you don't really need case fans. Case fans become useful when you have 3-4 GPUs in the system as at that point you need to exhaust all that heat. They look cool though.
It's OK to be confused when you're new
. Many things are really only learned through experience.