I think the more transparency there is the better and that people should pay the tax they owe. Nevertheless, there is a difference between tax evasion which is illegal and tax avoidance which is prudent and sensible given that most people pay tax at source through PAYE and that they are often only avoiding paying tax twice through, for example, extra tax on savings, VAT or inheritance.
There is an equal moral imperative for people's tax to be spent prudently and for the purposes which, determined through debate and democratic means, people desire. Too much taxpayers' money has been and continues to be wasted on unnecessary - and often - almost nefarious purposes. Often what one sees is that taxpayers are paying for the knife that stabs them in the back.
Finally, 'whitewave', your list is timely and helpful. It is worth noting, however, that during the MPs' expenses scandal, an equally useful 'outing', the main villains were Labour politicians who were milking the state for all it was worth and, (see middle paragraph) taking taxpayers for fools.