Cut out the coconut milk, and creamed coconut - it's really fattening! I add milk when cooking the curry and a couple of ablespoons of either natural yoghurt or low fat creme fraiche if I want a creamy one. As far as a basic curry recipe:
Fry an onion, red chilli, garlic and fresh ginger then add
1 tsp cumin, 1 tsp coriander, 1 tsp paprika, 2 tsps tumeric.
Add veg, pulses meat or fish ( I love fish in curry - make an excellent shark curry the other day!)
Then add stock or milk, tin tomatoes if wanted,
At end, add creme fraiche or yoghurt and good spoon garam masala.
Enjoy!