Cheers guys,
I've been looking at free pascal with Lazarus. But by the looks of it - you compile different files to run on different machines.
I'm hoping to make one file that will run on everything - but i dont really know how it will work, as pc's use exe, and i guess macs use somthing else.
I've borrowed a usb drive from a friend that backs up your pc as soon as you connect it. It works on pc (and mac - though untested), i just wanted to be able to make apps that could run like that on all computers.
It cannot be java, as i do not have java enviorment installed.
Thanks agian all.