Validate Cell Entries To Named Range List

I have been trying to figure out how to use a named range (on another sheet) to validate the user entered data in a specific column. All my attempts at utilizing worksheet_change event have ended in errors. I've created a simple workbook that shows what I'm trying to do and have attached it to this message. The 'Sample (Data)' worksheet has the data table that would be completed by the user. On the 'Validation' worksheet I have named the range to be used to validate the data as 'rngVal'. So when something is entered under the 'Expense Type' heading, the code would verify that the value entered was contained in the 'myVal' validation list. If it was not present in the list, a msgbox would instruct you to try again. After stealing bits of knowledge and code from many of the posts on this site I cobbled together the following (which results in an error at the 'set rngFind' line):

Private Sub Worksheet_Change(ByVal Target As Range)
Dim rngFind As Range
'Set Target = Cells(ActiveCell.Row, ActiveCell.Column)
Set rngFind = Range("rngVal"). Find(Target.Value)
'If data in column C changes, do the following
If Target.Column = 3 Then
'If the value is found on the validation list, do nothing.
If rngFind Is Nothing Then
Else
MsgBox "You must enter one of the following in this cell:"
With Application
.EnableEvents = False
.Undo
.EnableEvents = True
End With
End If
Else
End If
End Sub