changing text to cell reference

hey guys,
I am having problems trying to figure out how to create conditional cell references.

I would like to write a statement that automatically runs a condition in calling a cell. For example, I would like a cell to reference "A(4+B3)" so that it references A4 if B3=0, A5 if B3=1, etc...

Is there a way that this can be done?

thank you very much. that did the trick. didnt think it could be done w/o some sort of macro.

you've done sanford c. bernstein economics a huge favor .