OK, just a bit of fun, as Peter Snow would say, but I've just held a draw here in my office.
Barcelona, Celtic, Benfica, Hamburg
Milan, Bayern, AEK, Spartak Moscow
Real, Lille, Steua, Anderlecht
Inter, Lyon, Sporting Lisbon, Dynamo Kiev
Liverpool, Roma, Bordeaux, Shakhtar Donetsk
Arsenal, Porto, Bremen, Kobenhavn
Man Utd, PSV, CSKA Moscow, Levski Sofia
Valencia, Chelsea, Olympiacos, Galatasaray
Looking at some of those "groups" makes me realise this is going to be no walk in the park...