Choosing a CPU and Motherboard HELP

Hey I bought a new computer and it was giving me some issues, the technician said I have to choose a different CPU and Motherboard. So I am actually replacing them.
Here is my current Motherboard / CPU.
CPU/Processor AMD AM2 Phenom x4 Quad Core 9950 Black Edition (2.60GHz/65nm/unlock) – $309.AUD
MotherBoard AMD AM2 S940 Gigabyte MA790X-DS4 (Phenom) – $179.AUD
Total: $488.00 AUD
My friend recommended Intel. I am not very good at this stuff but my computer is for gaming so I need something good.
Here are my computer specs:
CPU/Processor AMD AM2 Phenom x4 Quad Core 9950 Black Edition (2.60GHz/65nm/unlock)   
MotherBoard AMD AM2 S940 Gigabyte MA790X-DS4 (Phenom)
3.5" HDD SATA-300 500GB 32MB Seagate
Desktop DDR2 Ram 4GB Kit (2x2048MB) PC6400 800MHz Patriot PSD24G800KH CL5 (Vipper Head Sink)   
5.25" SATA DVD Buner/Rw HP DVD-1070 20x LightScribe (Retail Package) Black   
Video Card (ATI) PCI-e 4870 1GB Gecube GC-HD487XTG5-F3
Gaming Case Lian-Li PC-B25 (all Aluminum)   
   
Power Supply 750w Apevia Warlock ATX-WA750W (American Brand-3 yrs Warranty)   

Thanks,
Answer #1
Want to go Intel this time around?
Answer #2
before im gonna make any suggestions,i really wanna know what is the actual problem,replacing the motherboard/cpu just doesnt sound like a good recommendation to me,infact it sounds like
that techy had no idea what he was sayin
Answer #3
I used to get blue screens and slow PC… he said I have to replace my mobo and CPU and told me to choose one. I choose this:
Gigabyte GA-EP45-DS4P
Intel Core 2 Duo E8400
Answer #4
there could be plenty of reasons for that , its just not right of you to trust him so blindly
as long as the motherboard works (and got no bad leaking capacitors) there is no reason
whatsoever to replace it (unless your after an upgrade) , your processor works just fine
not to mention processors outlasts all other parts in longtivity
do you still get blue screens? pc slowdown can be related to dma being disabled
on the bios or in windows device manager and also to spyware/heavy anti-virus/secuurity software
i still think that techy is clueless
you dont wanna waste money for no reason
your computer is fast enough believe me the processor
isnt slowing it down and you got more then enough ram