There are too many charter firms to give a specific recommnedation - just find one where the boats are less than a few years old and you should be OK.
Where to sail there? Anywhere! There are 1,700 islands to choose from.
High spots for us this past summer were Dubrovnic, Mklet, and also the Kvar National Park - go look at our blog and you'll see some shots etc.
Swagman's post is a valid and useful post that was in responce to SPAM that has been deleted and poster banned for obvious reasons.
All is well!
__________________ Faithful are the Wounds of a Friend, but the Kisses of the Enemy are Deceitful!
A nation of sheep breeds a government of wolves! Take nothing but pictures, leave nothing but footprints!