Tiling Over Floorboards Options

[Penkoprod]

Hi all,
I am in the process of getting all the bibs and bobs together to renovate my bathroom.
I wish to tile the floor, and am thinking about what options i have to do so.
I know i need to "strengthen" the floorboards with a certain thickness of plywood sheeting, so as the tiles stay in place over time, so i was thinking what if i removed the floorboards themselves and replaced them with plywood of the same thickness? This would mean not having a "step up" into the bathroom, neither would i need to reposition the toilet waste pipe, to reflect the new floor level.
Does this sound feasible?
Any other (easier) options?

Penkoprod

 

[gcol]

This is covered in the sticky at the top of the tiling section. See the part on Timber Floors in the floor tiling section.