If you're looking for a clean minimal Joomla 1.5 template for your online store then this one is very recommended.
i-Lela is one of the minimal commercial templates collection from iTemplater. The design is so simple and clean with big image to get more attention from your store visitors.
i-Lela could be customized to also looks good for your Joomla powered personal folio or company profile.
Check out i-Lela demo here.