yip play leigh griffiths as a poacher and try and get a big strong target man to play beside him. i am currently Norwich at the moment and he has scored 44 goals in 65 matches. another good cheap buy is Adam Rooney from Inveress caley thistle he will also score a bag full if you play him as a poacher.
There are 4 other threads on him already. So please search next time.
This is prob the best one: http://www.fm-base.co.uk/forum/f101/leigh-griffiths-bargain-goal-machine-t52158.html