Hi, I was thinking of getting an old aluminium imac for my sofa, so that I can comfortably work. I will be getting a 24' 2007 imac solely for the purpose of writing documents, doing research and watching movies. I will also be getting a vesa mount for it, so that I can mount it on a vesa arm for it to be out of the way when I don't want it. Now, I have been searching for a long vesa arm which can swivel and is about 3m long, I have however not found any ones in that length. Does anyone of you know of a long vesa arm that firs my needs? Thank you for your help! PS please don't say get a laptop because I prefer large screens!