Your hard disks are fine, they're between 82-96F (28-36C).
The CPU cores in your Intel i5 2500K however are running hot at 200-206F (94-97C). Whether it's "far too hot" or just "quite hot" depends largely on whether these measurements were done after some CPU-intensive work (video rendering, heavy gaming, large file (un)packing operations...) or after a period of idling. But it sure is hot. Here in Sydney my CPU gets between 30C idle and 45C load. It's an i5 4460 @ 3.20GHz with stock cooler and no overclocking.
Ok, the Sydney weather doesn't often go up to 40 but but it can get up to medium to high 30's here as well :) And I normally leave my PC running in an unairco'd room with a window for extended periods.
Did an amateur install the CPU and the cooler? If so, he/she may have forgotten (or applied incorrectly) the paste that goes between the cooler and CPU. Common mistake.
So... What to do? Couple of things you can look at/do:
Distinguish between temps under full load and temps under "idling". Update your question with your findings.
If you have it set to overclocked speeds, tune it down immediately and see if it improves.
Check your power settings and make sure the CPU cooling can go all-out. See if it improves.
With your system turned off, look at the cooler. If it's dusty or dirty (do you happen to smoke in the same room?), that's often the problem. See if you can pluck some dust out easily. Don't touch the actual fan itself because it's tender, just from between the radiator ribs, see if it improves.
Check the airflow inside your computer. Shouldn't be too bad, because your hard disks are fine. It's mostly your CPU, judging from the picture. A good airflow can help though. Do you have case fans installed? Are they actually working? If the computer is in an enclosed space, take it out. Take the side panel off, point a table fan at it, run again, see if it improves. If CPU temps go down like 10-20 degrees, it's the airflow. If it doesn't, it's the CPU/cooler combination.
If it looks to be your CPU/cooler themselves (and not the power settings, airflow or overclocking), consider a new cooler. They're not that expensive (certainly cheaper than a new CPU and motherboard) and are not hard to install. Just take your PC to the shop and they might do it while you wait if you call ahead. Couple of minutes of work.
Good luck!
