Digitally coloring my drawings is my preferred method, but that does not mean it isn't a wrestle match to get color theory to be on my side. But when color theory and I get along, we get colored monsters. Behold the Spector that lives in the Dwarfish ruins in the Dragon Spire mountains (yes my friends have already faced this creature in Dungeons and Dragons)
For me, digital colors lets me experiment with out the constant worry of ruining the drawing like it does when I watercolor. In college I watercolored as my main method, but between working with Chris Gash and Cory Godbey (post college), digital grew on me. Now its mostly a balance of cool and warm, darks and lights, and not loosing the drawing under layers and layers of photoshop. But hey, feel like I'm getting some where now!