My late 2009 iMac is still chugging along, though its guts have been...rearranged somewhat in the last year or so (HDD replaced by SSD, failed HDD fan replaced, several internal components left disconnected after the last surgery, etc). (Also, yes, those
are two Time Capsules acting as a makeshift stand – they're both broken, so I decided to put them to a somewhat unorthodox use.)
To the left is a HP ZR2440w I won in a company raffle last summer, which is awesome for reading documentation or long pages of text in portrait mode while I'm working in Xcode on the main display.