LightWave - 3D modeling, if you can find it.
Scala MM(200-400) - Presentation software, beats the crap out of powerpoint 
Deluxe paint (I, II, III) - a wery powerfull graphical software... For its time.
Turbocalc - spreadsheet
Browse the aminet database to find other interesting software....
HAM mode wasn't supported until Deluxe Paint IV though. Version V was the last version, so grab that if you can.
