Some of the common woodturning tools that I use are bowl gouges, spindle gouges, scrapers and parting tools. Each one has a slightly different profile for it's unique purpose, but I can sharpen them all with my low speed bench grinder and a few add-on accessories.
A few accessories that I find really handy are the Profiled CBN Wheel from Woodturners Wonder and Oneway Wolverine Grinding System with a Vari-Grind Jig.
Hopefully after watching this video, you can take away a few sharpening tips to hone your skills and your tools.