What are people using and what is recommended for servos for an AvidCNC 4848? I will likely be upgrading this to a 4896 within the next 5 years, so I want appropriately sized servos.

I do production work part time. Say 20 hours a week. I cut primarily wood and some plastic. Occasionally aluminum. I currently run a Joe's Hybrid CNC 4848 with LinuxCNC and Mesa cards. No complaints on the Mesa or LinuxCNC, though open to change. Upgrading to an AvidCNC for improved precision & repeatability as well as stiffness.