I used to order from Lightning for my wire, but recently I've been using Jacobs(
Kanthal A-1 (A1) Wire) and really happy with the selection and service, fast free shipping is always a plus. I originally was drawn to Jacobs because they carry Rene41 but I ended up ordering all of my wire from them when I saw their selection, ended up with ~400ft of Nichrome 80, another ~400ft of Kanthal and 30ft of Rene41.
Edit: Have to add, you have not experienced a springy wire until you've tried building with Rene41. Holy crap is it frustrating to build with, ultimately ended up barely using it and currently have nothing built with it.