Steve,
Good article, well written. However, as brought up it does give an appearance (notice I said appearance) of a conflict of interest.
You highlight a RedGate product and guess what - Red Gate owns SQLServerCentral.com.
While most members are aware of this, not everyone may know that RedGate bought this site. It's not really highlighted anywhere.
I suggest doing like other media outlets do...include a disclaimer that RedGate owns this site when you write an article (pro or con) about one of their products.
Just my 2 cents.
-SQLBill