My suggestion is WinGreek. It has a program that comes with it to
automatically position accents and other diacritics. It also has
Hebrew right-to left capabilities. And it comes with a utility that
can convert CCAT and Michigan-Claremont transcription of Greek and
Hebrew respectively to the WinGreek fonts of these languages.
Shareware: cost about $35.00 last time I checked. You should be able
to find it on the web with any good search engine.
David L. Moore