I think that the whole parliamentary expenses thing has been blown out of proportion. There are a handful of seriously fraudulent claims, but the majority are either claims for what is truly essential for MPs to work, or misguised, like chocolate biscuits. These misguided claims are there due to poor implementation of the correct processing of MP's expenses, which is partly the Speaker's jurisdiction admittedly.
However, I think the entire system should be put into focus. Although it doesn't justify the more fraudulent claims, the public (as portrayed by the Media) seem to be furious that MPs have a salary or a claiming system at all. The claiming system needs to be a working system, as otherwise becoming a member of Parliament would become such a incredibly costly business, with the travel to and from London (imagine if you were a Glaswegian MP), and this would prevent lower-income people from becoming a MP.
Finally, this story has been around for years. YEARS. I mean decades. Whenever the media started to move on it however, there would be a consensus amongst MPs that they were public servants and that their expenses incurred whilst serving was neither a perk or a pleasure, but a necessity. With Gordan Brown at the helm, and a general election imminent, a few MPs Kate Hoey *cough*, thought they could make a name for themselves however at the cost of the other MPs.
Michael Martin was a pretty good speak really in the actual house. and he was also a very good local MP apparently. I just hope Anne Widdicombe gets the jobs so we can really see what a shitstorm we are in.