This build is already about £500 more than I had planned to spend! Now they're saying buy monitors? Aaiiieee, my wallet. Maybe down the road if I deserve a treat I'll spring for a higher refresh 1440p monitor. It's likely enough, I am kinda spoiled.
The motivation for picking one small NVME SSD is that after the upgrade I'll have two >10Tb file servers on my network, one for serving media to the projector and one for backups. I would feel just silly buying more storage at that point... At least for now.
I'm seriously considering the Thermalright Royal Pretor 130 or a Peerless Assassin 120; both are highly reputed, I've seen them used on this CPU with good results in completed builds on pcpartpicker, and the case I'm going with can fit a heatsink 185mm tall so either will fit, incredibly enough. Also, most of my favourite games are indies so I don't plan on overclocking or anything crazy.
I've just been talked down from getting the 9950X3D for the 9800X3D instead. Benchmarks all said both will be roughly an order of magnitude as much computing power as I'm used to, and the higher wattage and heat of the 9950 would probably push me into genuinely needing a watercooler. I'm hoping I can get away with a fan cooled CPU under the hood and not have to worry about AIOs dying every 5 years. Is that reasonable?
Thanks for the nuanced advice! I don't mind fan noise so much, I'm very accustomed to it and I tend to crank the tunes up anyway. I would absolutely be stepping down a tier or two if I was just doing office work, gaming, video editing, or streaming media. But since I'm doing all of those - and want the build costs to amortize comfortably for the next decade or so - I feel okay with reaching for the top shelves. I'm not going for a crazy threadripper workstation or anything, so I pat myself on the back for showing humility and restraint. And then laugh at myself behind my own back.
At this point I've got two parts lists picked out, depending on how long I decide to save up I might either go for a "vaguely reasonable" build based on the 9800, or if I decide to hold off until after the summer when my parents have left and won't be around to annoy me with helpful advice, I might have saved up enough to build something based on the 9950 with all the bells and whistles. If I go that route, the heat sink might end up being a Noctua NH-D15 G2 LBC instead, with six case fans just so none of them have to work as hard as all of them. Is that vaguely sane?