• make a song and dance about it

• be torn between one thing and another

• be gunning for him

• agony and ecstacy

• on the wagon

• jump on the bandwagon

• strike a bargain agreement

• into the bargain

• jump the gun

• a shotgun marriage

• the big guns

• the long and the short of it

• stick to one's guns

• the busniess end of a gun

• go great guns

• wheeling and dealing

• spike his guns

• a shotgun wedding

• big guns