Here's a nice little discovery I found via the magazine PC Gamer:
An inordinately fun flash game of the battles for England in 1066. Includes a three-battle "story mode" featuring Fulford, Stamford Bridge, and (of course) Hastings, "build your own" battles against the AI, and even multiplayer.
Command the English, Vikings, or Normans

Check it out. Its fun, I promise!