Ds was pretty non comittal until he heard the word xbox.
Basically the idea is, that if he does his homework without fuss, and concentrates properly then he gets 10p. Although generally, I do not agree with paying children to do their homework, I am willing to try it.
I am waiting though until ds realises that 10p a week is not going to get him an xbox for a very very long time, because then all hell will break loose and he will think I have folled him.