Where is a good place to purchase a PC battery?

[Filliam H. Muffman]

Oh, a replacement laptop battery... I thought you were asking about a clock battery like the CR2032.

I have not used anyr of these but they were recommended by other people.
http://www.bargainbasementbatteries.com/...eries.html
http://www.apexbattery.com/
http://www.zbattery.com/toshiba-laptop.html