Found some dairy free milks and cheeses - not sure if they're right for what you guys are looking for though?
Arla Lactofree Dairy Drink, Semi-skimmed, chilled (300ml)
Arla Lactofree Semi-hard Cheese (35g)
Arla Lactofree Dairy Drink, Whole, long life (200ml)
Arla Lactofree Dairy Drink, Skimmed, chilled (375ml)
Arla Lactofree Chocolate Milk, long life (250ml)
Arla Lactofree Dairy Drink, Whole, chilled (200ml)
Arla Lactofree Dairy Drink, Semi-skimmed, long life (300ml)
Arla Lactofree Mature Cheddar Cheese (30g)
Arla Lactofree Chocolate Milk, chilled (200ml)
Arla Lactofree Mild Cheddar Cheese (30g)
Haven;t seen yogurts yet, but I'll update if I find anything else