A little off-topic but...
People need to drop that Mac mini "meeh" attitude and notion that iMacs are disposable. Well maybe in your world but in mine both of these products are well beyond what you can buy from other brands.
Mac mini, especially 2011 model is very powerful for its size. People and companies are using them for HD editing and it handles well (see
http://provideocoalition.com/index...._video_editing_a_field_report_from_guatemala/ ). The beaten-to-death argument that the computer gets hot... well it's a damn computer and if you'll be doing heavy editing and encoding EVERY computer will get hot, more or less, even 15" MacBook Pro, iMac, i7 PC. So what? If you do that for living you just live with that, the rest of you who edit family stuff on weekends should just drop it.
There's also Mac Pro (its current value aside) that doesn't get that hot because of its big chassis and cooling but to me it seems, majority of people here just like to brag and don't have really NEED for something that powerful, they just want to say they have big computer.
Disposable iMacs? My friend has had his iMac for 3 years, editing 1080P videos and batch processing large photos. He does that for living and he doesn't plan on buying new computer any soon. OMG unbelievable right? Is that disposable? To me, a lot of people just like to buy new stuff.
Just get Apple Care with iMac before your first year of warranty ends and you will have everything covered.