Hi there,
titiMadam has been running on Ubercart 1 (Drupal 5) for a while, and we recently upgraded them to Ubercart 2 / D6. While adding some language options.
Here's some info on titiMadam, if I can offer any help or advise on any aspect of the site please ask 
titiMadam create fun playful jewellery and their ethos is design should not be taken too seriously. But they also needed a heavy-weight e-commerce site to be available in three languages.
We used Drupal and Ubercart to create the site, this allowed us to quickly and easily add-in Finish and Swedish language options along side the sites default English language.
We decided to keep the standard catalog views as it worked so well for them out of the box (instead of using views etc.)
More information and screenshots can be seen here: http://www.londondesignworks.com/case-studies/titimadam
many thanks,
Vince
London Design Works