So my iMac is really annoying and keeps on vibrating my desk. I had 2 of the same iMacs, (had to get it replaced) and also this has happened on 2 different types of desks. My first desk was made of wood, I think, and I felt the vibration, but tried to ignore it. I recently purchased one of the Galant desks from Ikea (with the T-leg) and it's still there! The vibration isn't big enough to actually knock something over, but it's slight, and it's there. Seriously VERY annoying. Anyone else experiencing this? If so, have you found any kind of solution?