$500 CAD Budget computer for parents

So my parents old computer seems to be on its last legs (video card is now giving error 43s :S) so looking at getting them something new. For the most part it is just used for email and pictures, but my mom does like to play light PC games on it (around the Plants vs Zombies level).

Approximate Purchase Date: next week or so

Budget Range: $500 Canadian after shipping/rebates

System Usage from Most to Least Important: Email, photos, light gaming

Are you buying a monitor: No

Parts to Upgrade: New system

Do you need to buy OS: No

Preferred Website(s) for Parts: Newegg.ca, Canadacomputers, NCIX, tiger direct (though the more from one location to keep shipping down the better)

Location: Toronto, Ontario, Canada

Parts Preferences: None

Overclocking: No

SLI or Crossfire: No

Your Monitor Resolution: iirc it is 1024x768 :S

Additional Comments: Keeping it quiet will be helpful. It's also going in the corner of a room so dust tends to build up in the area


What I was looking at:

Case: Rosewill LINE-M Micro-ATX Mini Tower $45

PSU: 550w Rosewell $80 (though think I should get a better brand name PSU)

HD: 500GB Seagate $80 not sure on the brand. iirc seagate makes bad HD?

Mobo: MSI FM2-A75MA-E35 FM2 $62

CPU: AMD A6-5400K Trinity $75

RAM: 8GB DDR3 1866 $48 (I heard the AMD cpu does noticable better with the faster RAM).