A side-effect of having the walls painted was that the two aluminum mini-blinds were damaged. I used the pieces from one to fix the other and put it in the Master Bedroom, leaving a very broken one in the Library. So we needed to replace them.
We checked both Lowe's and Home Depot (and a place online). I wanted to match the function of the other blinds in the house -- double cell, cordless. The best price was from Home Depot: Bali 1/2" Double Cell Light Filtering with French Latte on the inside and White on the outside. $340.50. It was shipped direct from the manufacture in Mexico to our house.
To install the new shades, we first removed the old mini-blinds, patched the holes from them and painted over any patched or missed spots. Then there were 3 new brackets to install, and the new shades snapped into place.
Put the curtains back up and we have the new shades installed.