My advice would be: if not really, really necessary, do not bring those valuable items like laptop, iPod, expensive cellphones, jewelry etc on your vacation. As those are the items, thieves will be targeting.
But if you want to or must, maybe a travel insurance for those valuables could be an option? I'm not sure about it, I have read not so great reviews, that those kind of travel insurances are kind of useless as they have caps and only pay a portion of the actually item.
Here is an excerpt, more info at the link:
You’ve been robbed.
As you might expect, this is the reason that most experts in the travel industry recommend that travelers leave their expensive jewelry, electronics, and other important items at home instead of taking them on your trip. Unless you can be in constant contact with those items – as in, you’re wearing them – it’s hard to guarantee they won’t be stolen.
Your travel insurance plan has excellent baggage coverage: a high policy limit ($2,500) but you notice a per-item limit of $300 and a specific item limit of $600. Every single item you packed was well over that special item limit! This means the maximum you’re likely to get from your travel insurance is $600.