Since arranging a change to my data plan with iinet today, my servers appear to have all gone offline.
Because I am at work until 4pm, I am not in a position to rectify this by rebooting my router for about another hour.
Annoying part is, I requested they apply this change at the end of my current billing cycle - it seems they have done it immediately.
Change was a reduction in my monthly bandwidth quota from 160Gb/month to 120Gb - thanks to the release of MTADM 1.0.4 and the introduction of http hosted resources, my bandwidth usage has reduced by a staggering 100Gb a month. As such, I will be staging back to a 60Gb/month plan over the space of a few months.. saving me around $50!!
Extra thanks go to Mouldy for allowing DRuG's MTA resources to be served out of http://www.aussiegameserver.com, where bandwidth is substantially faster and cheaper than on my home link.