Possible solution

After spending yesterday thinking of the best solution to my sorting problem I have decided the best way of solving the problem would be to perform sectional redraws of objects that have objects in front of them. This would mean that certain objects would be partly redrawn multiple times which seems a waste of graphical grunt but i'm hoping that once i've converted to OpenGL it'll offer enough spare juice on the majority of computers not to be too much of an issue. My only other solution would mean a complete redesign of the code from the ground up and the possibility of not working at all. I'll implement the new method today so watch this space I guess.