I have more or less 25C case temp, but i keep my case open, so it's cool. Let's me play around alot more with it, plus i can feel the GPU temp, and CPU temp more or less.
I'm using basically de-ionized purified water with some anti-algae things from the fish place :P. Doesn't look great but it works smoothly.
Just wondering, what motherboard do you have? I have an A7N8X-X /w nForce2. With the proper motherboard sensor things in windows i think i was getting 45 or so. Not sure, sorta annoying to have two sensors soo far off. Oh well, at least i can read the volt temps properly.
Yeah gkrellm is "da" shit. Since all my fans i use manually control (potenciometers) i don't really use gkrellm for that, but i have like 6 extra plugins that i really enjoy, though my alsa input plugin just reads external input, when it'd be nicer to see ouput.
Maybe the sensors aren't wrong, and the internal heat is 60C, that means that the CPU dissipation is pretty crappy, to have a 30C difference in 1 millimeter... Of course the diode could be off, but i don't think that's the case...