[thefabfive]

You've got the first step right in coming here.

Second step is to install all the fonts you can so that you can see all the languages out there.

There are many dictionaries and online translators that are probably better than Google. Just do a search for the specific language and 'dictionary' or 'translator' and you should be able to find a few websites. Check them out and make sure you're comfortable with the information they're giving you.

Now, you don't need a punycode converter. Many registrars accept the input of unicode characters and do the punycode convertion internally - Domainsite.com is my favorite, but there is also Enom, Idotz.net, dd24.net, Dynadot, and others.

Before you go registering words you got from some dictionary, check the words out. Do a Google search on them - make sure they have a good number of search results. Check the images associated with the words on Google - make sure it's what you think it is. Check Overture - some languages have their own Overture tool (like Korean, Japanese, French, German). Some you can use US Overture.

The key is to do enough research to feel comfortable that the word you have is what you think it is AND that it is used in that language.

Take some time and read about all the tools available for researching IDNs - then get to work.

Good luck.