What kind of grinder did you buy? Can a retard (me) do it?
I just have a plain old 1/2 hp bench grinder from Lowes. Cost about $80.00. You can also get the various buffing/polishing wheels and compounds to pimp out your irons (um... refurbish, that is) at the end of the season.
If you can rub your tummy and scratch your head at the same time, you should be okay. Just wear the gloves (the metal gets hot fast) and as Norm Abrams says, "Always weah youah protective eyegeah..."