I am a student from the USA traveling to Australia and I need to buy a laptop to use there. Any ideas?

I need a laptop that will work with 240V 50Hz AC but, I do not know a good one. I liked the Lenovo ThinkPad R61 but it only works up to 230V. I need some ideas please…

Toshiba.

Lenovo ThinkPad X60 Tablet Tour