When I am playing games my computer shuts down.  I have been told I may require a better power supply.  Currently I have a 650W power supply.  Any Ideas and what other info can I provide?For most machines that should be sufficient...unless it's one of those cheap 20 Dollar models.

DLoad install and run SpeedFan and post your temps...both at idle and under gaming conditions.Here is info you requested and some additional info:

Power supply is an OKIA ATX power supply.
I have 1.5 GIG RAM.
Biostar GeForce 6200-MP Mother board for AMD PROCESSOR.
AMD Athlon 64 processor 3500+.
NVIDIA GeForce 9800GT 1GIG RAM Graphics Card.
SPEEDFAN info
IDLE                                                         GAME MODE
CPU                    74C                                         74C
TEMP 1             127C                                        127C
TEMP 2             127C                                        127C
TEMP 3               30C                                          32 - 39C
TEMP                  74C                                          74C
CORE                  43C                                          46 - 51C

IHOPE THIS HELPS.
THANKSYou're overheating...open the case and do some housekeeping.Way too hot.  Get some compressed air and blow the dust outyes if cleaning doesnt help get you a better fan and replace the thermal paste on the cpu!!!maybe get a second fan if THERES room, not replace the one there is.  Thats if cleaning out the dust doesnt helpI'm not sure, if this is overheating problem here.
I suspect, this:
CPU                    74C                                         74C
and this:
TEMP                  74C                                          74C
are temps for video card, and this:
CORE                  43C                                          46 - 51C
is CPU.
If that's true, 74C is not tragic for GPU

I may be wrong though

Download, and install Everest Ultimate Edition 4.6: http://www.lavalys.com:8081/everestultimate460.exe
Enter following registration code (Help>Enter product key) to make it fully functional:
RHGJE-54X47-HML9C-V498I-UUMVI
(it's all legal, the above version has been recently offered as a free download)
Expand Computer folder.
Click on Sensor.
Post all info from there.
Now that I think about it, there was another person who POSTED speed fan temps and those were 74 too....