Product option pricing in Magento

I have a store from where i will be selling items that have multiple option in regards to the size - small, medium, large, xlarge, etc... and the price is different for the sizes. Part 1: ------------------------------------- For example - if the cost of XX Small is (say) $100 USD, then cost of X Small is $105, Small is $110 and Medium is $115 - I can set the Product attributes so that the OPTIONS is like as shown below: Select Size XX Small X Small +$5.00 Small +$10.00 Medium +$15.00 This i am able to see in my store BUT - I want the Options to show prices in a way as shown below: XX Small $100 X Small $105 Small $110 Medium $115 Please let me know HOW to do it? PART 2: Also in case if i want to show a Quantity Box next to EACH product option how do i achieve this regards