Hello world! I'm in need of some help for considering a couple used macs. Recently my parent's trusty Dell desktop of 7 years is starting to go. First it lost two memory slots which caused a reduction in memory. This morning I took a look at it because they said it was becoming slow and getting really loud. Come to find out the system isn't registering the temp of the CPU and the fan is running on Max all the time. So instead of fixing the ageing computer I've decided to get my parents away from Windows as all they use it for is email, web searches, music, pictures and online games (Mostly facebook). They don't need a powerful system so I figured an old Mac would be good for them as I recently switched a little over a year ago to a Macbook pro and have loved it since. The computer I'm considering mainly for price is a Late 2006 iMac, I've found one at powermax.com for $199.99 and amazon for $149.99 I've also found it at other places for less but I don't trust the sellers. I know its an old system and a new mac mini would be good but considering I could replace the board in the Dell for less I would rather spend barely more for an All in one Mac but my concerns are weather it would be secure as it is not able to be upgraded past Lion which I believe they both come pre-installed with Lion. I've considered just getting it and hate to say it running Windows 7 (8 if its supported) as they know how to use it which means less trips home to spend the time fixing it. What are your thoughts??