The Wolverine System by Oneway is used by a lot of turners. The basic system
sells for $80-$90 US and you can add a skew and gouge jig for another $70 - $80
or maybe a little less. The gouge jig can be set to give you a fingernail
profile which can help when turning beads or hollowing vessels. The system
uses your 6 or 8 innch grinder (Oneway recommends an 8-inch grinder). The
system can be purchased through Woodcraft, Craft Supplies, as well as other
woodworking speciality stores.

For more sharpening info, ckeck out the wood turners news group at
rec.crafts.woodturning

luck Michael