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.
Just built a new pc, the first for a few years but probably the 20th or so I've made in total. This one's a home server, replacing an HP ML110 Gen 9. It's running proxmox with a dozen linux vms and is performing very well so far.
Cheap PSU, half a case nailed to a wall (seriously. I keep it in a cupboard). A fanless gpu just to get it booting. Stock cpu fan and that's about it. Idles at around 50 watts, which is less than half of the ML, and is almost silent.