That should be fine, good price. But to ensure 100% stable no error producing ram get the Special Reserve RAM. Its around the same price and guaranteed to run at 66mhz if required.
www.ukram.com
Edit: Wow I didn't check the prices, sky high! Buy from somwhere else, Im pretty sure the RAM you chose will be fine. You could always go down to PC world or you local PC shop where they will test if the RAM is compatible.