Just an idea with the add to cart success / warning / attention.
I notice you have added a little extra so that if a customer is scrolled down a page full of products & adds one to the cart, the page then automatically scrolls back to the top to show the 'Success You have added . . . .' box, but if you have several products on a page, the customer then has to scroll back down to carry on were they left off from. What about adding it so that the 'Success . . . .' fades in to show in the centre of the screen then fades back out meaning the cutomer does not have to click on the x to close it or scroll back down to carry on shopping
I have managed to do this which you can see here: testsvn.next2nowt.com & it works in the latest FF & IE but I have not tested it in other browsers. Just an idea that I think works very well & looks good + makes it better & easier for the cutomer to continue shopping instead of trying to scroll down & find were they was at
