I am just north of Orlando, FL on a business trip and stopped in on Sheffeild Knifemaker's Supply, Inc (Orange City.) They have a bit of everything. Ann Sheffeild is the owner and runs the place with her son. Very nice people, informative and helpful.
They will ship to you.
Pasternakfindings.com has a real good selection of various wires...rose gold, white gold, sterling silver, etc. What I like is the great selection of diameters. If Rio Grande does not have what you want check them out. They are located in Israel, so shipping is a little longer but the service is good.
I just stopped by Panhandle Leather in Amarillo, Texas on the way home from the ABS Exposition in San Antonio. They have a great selection of quality leather and tools. I was able to purchase some quality Herman Oaks leather for my sheaths and several Barry King stamps. I have purchased my leather from them for several years.
The staff is very knowledgeable and they can ship anywhere. Their website is http://www.panhandleleather.com
Dan Cassidy
Journeyman Smith
Send an email to Dan
One of my favorite haunts is Freshman's. It's a jewelry store and supply house. They have a good assortment of abrasives, tools, casting supplies, metal sheet & wire, stones, etc.
Just browsing their online store gets my creative juices flowing.
Here is another good one:
Amazing tongs made by a great blacksmith at prices that are about what you would pay for commercial tongs. He can forge whatever style you want. He also forges hammers at good prices.