There are loads of mods, but, currently i haven't indulged, but plan to try XL when I finish my current campaign. The best faction to try for starters is either the Spanish or the Byzantines. The muslims need a bit of experience so are ideal for a second or third campaign. Both start next to muslim factions so no need to go looking for enemies!! Also the Byzants don't have to worry about the Pope/ excommunication etc and the Spanish have a convienient muslim enemy for starters in the Almos so no Pope problems in the begining. Finaly, have a read of the faction guides within the forum before you kick off - they give you a style to play with as well as useful starting moves to get the best start. So enjoy and prepare for long nights of just one more turn.