Ah right, the RAM is indeed a good deal.
However, while the Seasonic Prime is a good PSU, you can get a high quality 850w for half the price, extremely unnecessary, it adds nothing to performance etc.
You can get a 3TB Barracuda (7200RPM) for $89.
WD Blacks are good drives, but not necessary in regular use unless doing heavy data transfer regularly, which in this case should be handled by the SSD given the video rendering background.
A 1TB SSD might actually be a good investment tbh for all the video, with the HDD storing games etc.
You could get double the storage and setup a raid redundancy array and still be at the same cost.
Point is, a WD Black should be cheaper per TB than that generally, i've seen 4TBs go for around $180 usually.
I've been using WD drives for ages as well as Seagate, and I can tell you the only difference between them is warranty length.
Given there is no budget restriction you can technically go all out, but that's money I'd spend other places, even if I did have no cash restriction.
Its a matter of value, even in high end.
You could go for a 6950X, 10TB worth of solid state drives, 1080tis, a 1400w PSU and the fanciest monitor on the block, but at what point does that cash become wasted?
Also 64GB is probably a better choice for the video.