Himalaya is the new entrance, cafe, gallery, shop complex - it also sports a huge vista window onto the snow leopards enclosure - which currently contains 2x 3 month old cubs with their mother :O) very very playful later in the day and if the light is right and the windows clean you can get decent photos.
I loved the Dholes and the Hyena although photos of the latter are tough as theya re currently separated and seem to be hogging the fench next to each other.
It is a primate centre so you get the full hit - Bonobos, Chimps, Gorillas and Orangs - all with young at the moment too.
the Borneo longhouse walkthrough at the back of the elephant walkway is also good fun. Scottish wildcat on the way in to that so keep your eye open.
mmm what else...... plenty of smaller carnivores and prosimmians (although enclosure mesh is not the best for photos in the latter).
Food best in Himalaya if you are buying it - it's not a long walk back and you get a free pass out bracelet - oh yes forgot to mention that entrance to Himalaya is free as you don't enter the zoo proper until you pass through it to the turnstiles.
Have fun!!