I just bought my first iMac ever, and so far i'm loving everything about it, but I am a HUGE neat freak and obsessed with keeping my techno gadgets, computers, and iphone - clean, virus free, spyware free, and running in TIP TOP shape at all times - I have already downloaded Onyx, And Sophos Anti Virus - But im curious to know if theres any other applications that do other things that are necessary for my new iMac aside from the functions of these 2 applications and anyway to monitor and make sure theres no disk errors or fatal errors on my system - Im not the most knowledgeable about computers, i am better than average but if there are any things i could do to improve my iMacs performance or just know any useful applications/websites in general id GREATLY appreciate your help - Thank you