Write data from one cell to another cell

Is there any way to SEND data from one cell to another?

I wish to use a nested IF function in one cell to choose between three
different criteria, in the event 1 then output A, event 2 then output B, Etc.
However I want the three different outputs to go to three different cells. Is
there any way that I can write the result of a formula in one cell to appear
in another (say the formula is in cell A1, but I want the output to appear in
either B1, B2 or B3 depending upon the output of the formula).

I know that this could be done by using a second IF function in each of the
€˜receiving cells (i.e. B1..B3) but I am looking for a solution where I can
leave the cells B1..B3 blank and only have data appear in them after cell A1
has performed its function.

Comments:
I am looking for a solution that does not require the use of either VBA or
macros. I am using Excel 2007. Also please include any relevant information
about cell formating Etc.

Many thanks.