/diy/ - Do It Yourself

I need some recommendations on types of tools and accessories I should have for making clean precise cutouts in front panels for mounting connectors, displays, switches/buttons,etc. I don't do much heavy duty work and am rather more interested in high precision.
I'd be mostly working with plastic project boxes and maybe some die-cast aluminum. Possibly wood but probably only rarely. Willing to shell out a bit more for a good quality tool, not looking for Harbor Freight cheap tier.

Also, on a slightly different tack, if anyone has suggestions for a good milling machine for PCBs do tell.