Is my Computer too Hot?

Hello,
Recently i had a problem with my computer, and it decided to turn it self off late at night after being on almost all day, normally this is something that i regularly do, as i turn my computer on from the minute i wake up, to the minute i go to bed (It's on roughly 10-12 hours a day)

After it's been on a couple of hours, it becomes hot to touch, not too hot that you can't hold your hand on it, but noticably hot, and i'm just not sure if this is normal or not due to it turning itself off, it also wouldn't turn itself back on until the next day, i assume because it cooled down, but even then i had to flick with the power switch a bit (Maybe a problem with the powerpack?)

Anyway, i'm using the Razer game booster to monitor my temperatures, and they are as follows (Or so it says)

CPU: 62 C
Mainboard: 62 C
Video Card: 66 C
Harddisk: 59 C
Fan Speed: This spikes from 100 to 15000

Processor Intel(R) Core(TM)2 Duo CPU E6750 @ 2.66GHz, 2664 Mhz, 2 Core(s), 2 Logical Processor(s)
NVIDIA GeForce 9600 GT
All i could dig up that i understand, sorry!