Most of your components aren't too old. That case though is gettin' up there.
Don't get me wrong though, I love the retro vibe.
That case was originally purchased for an Athlon XP 2500+ setup.
When it died, its place was taken by an Athlon 64 X2 5200+ setup.
When that one died, the current setup was constructed.
Gotta love dat 1mm thick stainless steel... has a nice weight to it