47 seems about right for the CPU - a quick check here shows my Athlon 1.3GHz is running at 48. The danger point is somewhere around 100 (IIRC).

Why the Vcore's in red, I don't know. The rest of the voltages all look okay, the 12v is a little high but that's probably due to relative loading of the voltage rails.

It might be worth getting a case fan, as 42 for the case is a little warm. Mine I think is about 30. It's not something that you have to get, but it'll cool things down a bit and give you an excuse for more flashy lights and stuff. Flashy lights are always good. Especially blue

If you decide to overclock, then do get a case fan. Also look at replacing the processor fan with a better one - the fans that come with the chips tend not to be as good for overclocking. Tho I still recommend against overclocking - too risky IMO.