[Tex/LaTex] Can’t get italics to display for Japanese font using xelatex

fontsxetex

I can't get italics to display correctly with xelatex for Japanese or Latin text using Japanese fonts.

Sample file:

\documentclass{book}  

\usepackage{fontspec}  
\setromanfont{MS Mincho}  

\title{Test}  
\begin{document}  
regular テスト  
\emph{italics テスト}  
\end{document}  

It should show "italics テスト" or at the very least "italics テスト" but instead shows "italics テスト".

The log says:

LaTeX Font Info:    Some font shapes were not available, defaults substituted.

So I guess most Japanese fonts don't have italics built in even for the latin characters.
Does anybody know of free or inexpensive fonts with true italics like these that DOESN'T cost $595.00?
http://store1.adobe.com/cfusion/store/html/index.cfm?store=OLS-US&event=displayFontPackage&code=1801
http://store1.adobe.com/cfusion/store/html/index.cfm?store=OLS-US&event=displayFontPackage&code=1800

Best Answer

The Meiryo fonts work great and free too (for Windows users)! http://www.microsoft.com/downloads/details.aspx?FamilyID=f7d758d2-46ff-4c55-92f2-69ae834ac928&displaylang=en

It has italics for the latin characters to they will italics will probably show without having to switch to another font.