-Mean look, block Good for trapping your foe so they can't excape. You can also use a few abilities
-Status moves- given. Sleep and freeze work the best for the catching, but are also the hardest to do.
-false swipe-leaves the foe with 1 Hp, making for the perfect catch
-baton pass-can use mean look with one pokemon, then switch to a better suited pokemon
-Heal block-Works great for legendary pokemon who try to heal themselves
There are plenty of other useful moves as well
http://www.serebii.net/games/capture.shtml