Cell Selection Macro

Hi all,
I have decided to post here to see if there is a solution to my Macro problem. I am faily new to Excel. I am supposed to be an Airframe and Powerplant Mecahnic but due to a job loss I have found myself using Excel at my new employment. I use a lot of macros that I record and edit to speed things up. One such puts column sum in the cell I select.
Here is the Macro:

Sub Sum()
'
' Sum Macro
'

'

ActiveCell.Formula = "=SUM(V3:R[-2]C)"

End Sub


Here's how it works:
I select the cell I want the sum in. Run the macro. It selects the cell 2 rows above my selected cell (R[-2]C) and enteres that in the formula. It creates the formula for me, =SUM('V3':V122) (the second number varies depending on the cell iselect). The problem is that since I put V3 in the macro as the first cell in the formula it adds the ' around it and I have to manually remove it.
Thanks, Joe

Wow, thanks that did the trick nicely. Any good resources on leaning the VBA code language? Right now my only resource is Google. It works sometimes. But as that saying about fishing goes.