Configuring Products Attributes

[cloudywool]

Hi:

I just want to set fixed price on each product options, listed several package size and set fixed price on each size.

not plus or minus a value from the base price. i'll set the base price for the smallest size,

for other sizes, when customer select an option i want them to see the final price for that option, so they dont have to go through a math equation.

Please let me know if this is doable, thank you.