@ssgbryan

Wow, that's a hell of a research you have put into.
Thanks a lot, this is really helpful indeed.

So far, it seems we are on the same page for the GPU and RAM.
I have an RTX 3060 12 GB on my list and a set of 32 GB DDR 3 RAM is also in there.
This has to be changed to DDR 3 or later if I would make the decision to buy a new MB.

Funny you mentioned the Casing. I would never allow this beauty to be exchanged for one of those blinking aquariums.
I want a computer on my desk, not a night light.

My system has currently the storage capacity of 4 TB, Two SSD's with 1 TB and one external HD with 2 TB. That's enough storage space for my stuff.
I don't like to have too much stuff laying around, unused for ages and eventually thrown away anyways.
I have a decent sized backup place and I keep my system as clean as possible.
Every three month I replace the OS completely, that keeps things fast and working.

So, you gave me quite a bit of homework to do.
I will keep your advice in mind when I decide what to purchase.

Thanks again, greetings from Germany and a good start into 2025 to all of you.

BB