I use my 10 year old Northern Tool Oregon Clone grinder. It makes my chains sharp enough for me... they cut fast and make big chips. I've found that dressing the wheel and keeping the wheel sharp is the key to getting chains SHARP with the grinder without overheating the cutters. I set up the grinder to just fuzz the cutters, just enough to freshen up the cutting edges, and no more. Chains last a long time, someone said grinders eat up chains. I guess it's all in your technique.
When doing the rakers, I mount an old bar in the vise, and work the rakers on that with a File-O-Plate... well at least I used to... I set my FOP down somewhere, and now it has gone into hiding. So, I've been using the raker gage on the little Husky roller file guide, and it sets them pretty good... not quite as aggressive as the FOP though I don't think. Also recently picked up a Husqvarna raker gauge that I used the last time I did rakers, and it is just a little bit aggressive... but the next sharpening they should be just right. My real complaint with that unit is the metal it is made from is just a little soft... the file slowly wears it down, not like a FOP that is hardened so hard so that a file won't even touch it.