Is my computer overheating?

System Stability Test - Everest:

Temperatures:

Motherboard

Min - Max - Average
34 43 41.0
CPU 42 61 59.2
CPU #1 56 74 71.2
CPU #2 51 70 68.2
CPU #3 53 70 66.8
CPU #4 53 70 66.7
Samsung HD753U 26 31 29.1

Cooling Fans

Chassis #1

1004 42188 2998

Voltages

CPU Core 1.12 1.16 1.15
+3.3V 3.31 3.31 3.31
+5V 5.09 5.11 5.09
+12V 12.26 12.26 12.26

Methinks it's too hot. Any chassis fans that you recommend? My current heatsink is a Vindicator and my father thinks it's crap.

I would be purchasing the items from PC Cyber (pccyber.com).

Thanks in advance!

I just realized that I posted this in the overclocking section. My computer isn't overclocked at all. My mistake.

Just tried everything in HWMonitor:

Voltages

Value / Min / Max:

CPU VCore 1.12 V 1.12 1.16V
+12V 12.21v 12.21v 12.21V
AVCC 3.31 V 3.31V 3.31V
+3.3V 3.31V 3.31V 3.31V
VIN1 1.45V 1.45V 1.46V
+5V 5.11V 5.11V 5.11V
VIN3 1.45V 1.44V 1.45V

Temperatures
SYSTIN 34C (93F) 34C (93F) 34C (93 F)
CPUTIN 42 (105F) 41 (105 F) 46 (114F)
AUXTIN 127C (260F) 1C (32F) 127C (260F)

Intel Core 2 Quad Q9450

Core #0 56 C (132F) 56C (132F) 60C (139F)
Core #1 50C (121F) 50C (121F) 56C (132F)
Core #2 53C (127F) 53 C (127F) 56 C (132F)
Core #3 53C (127F) 52C (125F) 56C (132F)

GEForce 7900 GT/GTO
GPU Core 46C (114F) 45C (112F) 46C (114F)

etc.

Double post.