I have searched the web and cannot find any site that records fluctuations with past results. Unless someone else can find one I will probably need to poll for this info live. This has problems (as I mentioned before) and I would probably restrict this to one site/bookmaker. One possibility would be to use live-odds at aussportsbetting as they show sportingbet, totes, fixed odds from online bookies, and betfair prices. When I get closer to programming this I will run some tests to see how much overhead this would create.

On another issue - how many people here know and use SQL? Would being able to export all (or a subset) of my database to SQL be any use to anyone?