Since I wrote the last post I have added a new gadget that seems pretty useful. It is aimed at Australian Firefox (and other Mozilla browsers) users and others who have download limits on their internet connection. It provides a quick check of the current usage using the data from your ISP. It adds a meter into your toolbar. Hovering the mouse over the meter shows more info. I found out about on my friend Snowy’s site here. More information and it can be downloaded here.
Techodyssey 
doesn’t support my ISP 😦
Hi Adam,
I’ve answered you directly but for anyone else there are a large number of Australian ISPs covered, including all the larger ones, but if yours isn’t there are details on the site on how to add them or alternatively how to contact the developer.