Almost all Ale yeasts will handle 5% - 10% without a problem. If you are anticipating more than 10% ABV, then you might want to look up the alcohol tolerance of the yeast you used.
Planning: Agave Witbock, Raisin Beer
Primary: GF Hazelnut Stout
Tertiary: Cranberry-Pom pLambic (est. bottle date: 03/01/08)
Drinking: Cab.Sav/Merlot Wine, Grand Cru, Hazelnut Stout #3, Ordinary Bitter