Deal or no deal?

Gordon Brown faces another Westminster rebellion from backbenchers, this time over the third reading of the Planning Bill tomorrow. This would appear to be the third significant rebellion in almost as many months. Discipline seems to be falling apart in the Parliamentary Labour Party. In this case there is no talk of deals with other parties rather the Labour backbenchers are being worked similar to the 10p tax band but how should a smaller Westminster party handle such potential opportunities? When should it be willing to save a government measure? Should it be for measures popular with the public but lacking in support within Westminster? Should it vote strictly in line with party policy (presuming they have one) or completely unscrupulous? Should a regional party be concerned about the West Lothian question? 42 days wasn’t but the Planning bill is primarily for England and Wales. Does the party gain any political strength/bankable good will from assisting in the removal of an unpopular government? Discuss.