Excel 2007 :: Automatically Generate Email When Button Is Pushed

I am using the following piece of VBA code in Excel 2007 to automatically generate an email when a button is pushed:

Sub SendEMail()
Dim Email As String, Subj As String
Dim Msg As String, URL As String
Dim r As Integer, x As Double
r = ActiveCell.Row
'Get the email address
Email = Cells(r, 3)

[Code] .....

The button to launch this code sits in cell AK7. What I would like to do is have the macro copy the email address present in cell E7 into the email address section of my created email. In addition I would like the reference provided in cell AJ7 to appear in the Message Subject part of the generated email in the format " RCS Reference contents of cell AJ7".