I have a Mac, which runs Mac OSX 10.6 or Ubuntu 9.10 or Windows XP (Multiboot). Solution can be for any of the systems, whatever works better.

I have two ISPs, one can be accessed via Wifi, one can be accessed via LAN. In OSX i can define the priority, which network to choose first. But what i wish to do is to load-balance with both networks.

I don't want to buy extra hardware. I have some unused wifi routers if this would help.

Compiling and configuring programms in linux is no problem for me.

Thanks for any help.