You can buy a Kensington multicharger at Office Depot for about $20-$30. It comes with attachments for all of the big name brand laptops like Dell and HP and Toshiba, as well as ASUS, Sony, and one or two others.
I have one for my old Toshiba- which suffered the same fate as yours, and also use it for my old Dell- because my dog chewed through the cable. Of course, I have an HP now with a working cable, so I don't use the Kensington much. Still, for what it can do it's a steal.
Oh and it also has a USB slot for charging other devices like iPods.