The creator of the rules for Tempos Medievais - for which I have painted those russians, if someone recalls (oh yeh, it's these guys on the top of the page!) - is giving away a muslim army 500 points strong, which means about 40 infantry figures, or 30 infantry and 5 cavalry... I don't know but I am running for it too! Oh, and it's 1/72 scale!
So, go there, register at the site and answer the question:
Which is the symbolic date of the muslim conquest of the Península Ibérica?
The 10th correct answer wins it!