http://www.vinonostro.com/

Tried some lovely wine in Croatia a few years back but it was very expensive or hard to find in the UK. These guys have a good range and good prices though.
Really enjoyed the the Enjingi range (rich whites) and a red muscat. The Plavic Mali is similiar to Rioja although didn't find anything memorable. The island whites all seemed very similar to light Italian Pinot Grigio - nice on holiday but nothing that exciting.

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Viognier Reviews - my blog that does what it says in the title.
http://viognier.posterous.com