I recommend checking out your local bead store first and shopping local if you can. Lima Beads and Fusion Beads also carry most of these supplies and they are owned by women, so support them above large box stores!
Extra Large Memory Wire
Xuron Track Cutters
(*Amazon affiliate links)
Peanut Seed Beads:
Metal Seed Beads - size 11/0 is what I use.
Humblebeads or Humblebeads on Etsy
Green Girl Studios