I could be considered pretty biased so I'll keep this short.
You mention that BeOS lacks a decent Office Suite. Being perfectly honest, I think neither BeOS, MorphOS or AmigaOS4 can offer what you want in this. You should maybe check out Linux or Windows (Ergh!).
Saying that however, if you go the AmigaOne route, you can dual boot with Linux & OS4. This will keep your foot in the door with respects to future AmigaOS developments as well as having various Office like Apps available for Linux.
Still, it's entirely your choice. Hope there are a few genuine ones in this thread for you to consider.
FuZion.
