ok, yes i am the biggest procrastinator on earth but i looked at everyones suggestions and came up with the following;

Gothic Dungeon Builder #45
Wizard's Tower Mold #50
Prison Tower Mold #60
Turret Mold #61
Octagon Tower Mold #63
Floor Tiles #201

The wife let me have 6 molds for first order so happy days! I think these will give me the range i need for small projects and eventually castles. What do u think?