I myself would buy PS1.3. This is a 747-400 sim that covers over 95% of the real systems found on the 744 including a fully working FMC. The website can be found at: <a href="http://www.aerowinx.com" target="_blank">www.aerowinx.com</a>
Its not as pretty as PIC but its much more realistic, even the PIC programmers agreed!!