How can I program an Excel workbook so that:

1) Column A of worksheet1 is always exactly replicated in the Column A's of
all other worksheets (Column A of worksheet 1 acts as the 'master' so that if
I change any data in any cell in column A of Sheet 1, that change immediately
replicates through all the column As on all other worksheets).

2) If i add or delete a row while I'm in column A of worksheet 1, that row
is added or deleted on every other worksheet.

Example: Company personnel workbook:

Sheet 1, columns A, B C list employee names, phone #s, and hire dates.
Sheet 2, columns A, B C list employee names, birthdays, and ID numbers.
Sheet 3, columns A, B C list employee names, room #s and fax #s.

Desired action:
Fix a typo in an employee's name on Sheet 1 Col. A, and the typo is fixed on
all 3 sheets.
Insert a new row in sheet 1, col. A for a newly hired employee, and a new
row appears in all 3 sheets.
Delete an employee (row) in sheet 1, and that employee and all his info
disappears from all 3 sheets.

Sounds simple; help greatly appreciated.