I'm pretty happy with the latest version of my rig - sansamp RBI, sabine rack tuner, carvin dcm1050 power amp. I recently mounted my wireless receiver in the top space of my 5u case on a rack tray. That leaves half a rack space left. Seems like the only piece of gear out there is a half space alesis nanoverb. Wouldn't mind having some verb or chorus for when I need it. Is therey anything else that could go in the space?