I put all new vinyl windows in two houses I have remodeled in the past couple of years. I done a LOT of research on where to get them - all major places that carry windows. The very best price (by far) that I found was Andersons Lumber in Siloam Springs, Ark. Last year I got 12 new windows (custom, 41" x 44") low-e, gridded, double pane for just over a grand. Being as you're in Tulsa, it very well may be worth your drive over there. I would call them at the very least. They ordered in my custom sized windows much cheaper than I could get the discount "regular" sized windows at the the other places, and mine aren't green