Whereas Code 2000 may be a good start to support a lot of scripts, you shouldn't repeat the claim of it being "free". It's shareware.
<cite> If you like it and use it after a reasonable evaluation period, you are obliged to register the font by sending me $5 (Five U.S. Dollars, or equivalent in any currency.) Registration Fee Schedule: US$ 5.00 - Single user registration fee US$ 50.00 - Single site registration fee US$100.00 - Server/Web site (embedding) registration fee </cite>
In fact it is speculated that James Kass would be able to live a leisurely life if every user would actually pay him.
A very complete directory of available fonts is at: http://www.alanwood.net/unicode/fonts.html
Regards, Peter Jacobi