Croatia Charter Cruising - seeking advice (Zagreb)

Hi, I'm interested in doing a cruise along the Croatian coast with friends. There will be 8 of us, looking to cruise for a week, and trying to find a really good deal, as we will be flying in from California, Singapore and Indonesia to get together for a cruise reunion, in or around July.

If anyone is connected with the yacht charter business or can offer suggestions, I'd greatly appreciate any advice, particularly advice that might help us to get a good deal.

Thanks in advance!

Cheers, Grant