Magento Expert Needed - Community Edition

I have a couple of small jobs to be done on a Magento store. Please find below the tasks, please only bid if you have previous experience on working with magento. We have a few more sites and work can be on going. Link for the project: [login to view URL] Task 1: Please have a look at the above link where I have created different sizes of a particular product. At the moment users can select different sizes however cannot chose the quantity they want for an individual size. I need to have a quantity box next to the product where users can specify how many products they want of a particular size and the cart should update it self automatically. If you click on the below link you can see what exactly I require. [login to view URL] I added the sizes by going to “custom options” in the manage products section. Task 2: On the same page when adding an item with a different size the price is displayed with a "+" sign. So for example if the product is £100 and a different size of it is £120 at the moment it is displaying as +£20, I want this to show as £ 120.00 instead. Thanks Tmg