I'm half-way through buying all of my parts.
Pretend that my selected graphics card is the Lisuan G100. Because fuck AMD and NVIDIA.
My usecases are playing around with DaVinci Resolve and GIMP, small-time Godot game dev'ing, playing indie games, self-hosting (e.g. a Jellyfin instance for my movie/tv show for my LAN streaming needs) and just general browsing lol. I don't intend to overclock, so 600-650W seems fairly plenty.
I had previously struggled with H.265 video formats, my previous setup with the i5 4670k and NVIDIA 750ti were barely keeping up with anything new, never mind newer standards (somehow runs Ghostrunner 2 @ 1080p 40fps in most terrains!). They held their weight pretty nicely over the years though.
AMD Ryzen 5 7600x, RTX 4080 Super 16GB, 64GB system RAM, and like 10TB split up over multiple drives both SSD and HDD. I don't remember what PSU I put in but it's an 850W Gold from Corsair. Case is a Fractal North XL in white with glass side panel.
Usecase is 3D modelling primarily. I mostly work in Blender so getting a capable GPU was a must and the large amount of system RAM is nice when I'm working with textures in Substance or editing large files. I may upgrade my CPU as I move into more CPU-rendered tasks but right now I'm doing just fine.