has a decent list of what you need.
Generally speaking, I find I usually only need 2 configs; one for ECS and one for AGA.
ECS - 68000, A500 speed, Full ECS, 1MB chip, 100% sound, Kick 1.3, 1 floppy drive (some games care)
AGA - 68020, Fastest speed, AGA, 2 MB chip, 2MB fast, 100% sound, Kick 3.0
These two configs have run 99% of everything I've thrown at them. The AGA config you probably wouldn't need to modify but some OCS/ECS games get damned picky about RAM or Kick version.