Hi,
there are several reasons I prefer commercial vessels over yachts or cruise ships--I like research crews best and enjoy where freighters go.
Here is a link to a yacht forum and I have a couple of headhunters in my files if I haven't deleted them?? will check and get back.
http://www.yachtforums.com/
I recommend this book right now. The way he gets to a yacht is very interesting! I sent it to a friend, but will read it again. Bargains on amazon now--
http://www.amazon.com/Mediterranean-Summer-Season-Frances-Italys/dp/076792049X/ref=sr_1_1?ie=UTF8&s=books&qid=1269026706&sr=1-1
Don't know where you are located, but might check out day charter boats or passenger ferrys to get and idea of cooking where nothing stays where you left it.
Also depending on the size of vessel and crew, there are Coast Guard documents you must have and they are not inexpensive. Sometimes the owner will help with the expense if you stay your contract, if not you will pay back.
Also if you have had a drug conviction or a DUI, bye-bye.
Fair seas,
Nan