I recently finished my another project. www.amberhouse.com.au (Amber Jewellery in Australia)
AMBERHOUSE is an australian based online jewellery store offering an extensive range of Amber jewellery imported from Poland.
It was implemented using PrestaShop shopping cart solution.
PrestaCart is very easy for writing new modules and customise the existing one.
I had to quickly write Slideshow module myself, since nothing free was available online.