Alright this seems to be what I understand what I will need:
Rule Books
Dm Guides
Dice
Pen and & Paper
Character Sheets
1in Grid Paper
Markers for characters and monsters
That sound about right?
Grids are easy to draw on. Hexes are more accurate for range/scale/movement measurement.
Those who've played 4th ed. might have better insight as to what to get.
A ruler or marked string might avoid the conflict all together (like using naval mini's, micro armor, etc.)