shots in fifa 08 are really fentastic this is like giving correct power and direction..
lets divide these shots in to types..
1)"D" no combinations only "D"
2)"Q+D" hold 'q' while shooting
3)"C+D"hold 'c' while shooting
4)"Z+D"hold 'Z' while shooting
while you are one on one with the keeper and comming stright towards him just press D that is more than enough to keep the ball in the net with good turn of the direction keys..
while you are one on one with the keeper from the right wing or the left wing try "Q+D"OR"C+D" With good amount of power and direction.
while the keeper is making a run to get u
1)try to make lane change and shoot
2)try to chip i.e Z+D
MOST IMPORTANT THING WHILE SHOOTING DON BE UNDER FULL SPRINT