selecting a row with a variable

[LodBot]

For a = 4 To last
    If Sheets("Software Personnel").Range("K" & a).Value = "M760" Then
        Sheets("Software Personnel").Select
        Rows(a).Select
        Selection.Cut
        Sheets("M760 Personnel").Select
        Rows(m760Last + count).Select
        ActiveSheet.Paste
        count = count + 1
    End If
Next

When I try to run this code... I get an error "1004 Select Method of Range class failed" and doesn't like this line:

Rows(a).Select

Any ideas? Any different algorithms that would work?

Thanks,
Alex