The device on the left is a studio monitor (speaker), probably there's a near-identical one on the left side of his display. The other one I'd think is a scale

The device on the left is a studio monitor (speaker), probably there's a near-identical one on the left side of his display. The other one I'd think is a scale model of a Power Mac G5. It matches the general layout but it's too small to be a real one. It's also not connected to anything, and I think it's being used as a bookstand.