Welcome to the wonderful world of beading. I have been working with beads of all shapes and sizes for about 10 years. In the past I have ordered from Firemountain Gems and Shipwreck beads. Both are wonderful. Also, don't be afraid to take apart older jewelry for findings. Those can be the most unique special touches!!
I've always been pretty lucky with having bead shops close to where I live. Most of them also have classes too that can be a lot of fun. Nothing better than a bunch of people sitting around beading and talking.
Currently I am doing lampworking and making glass focal beads. It's an amazing hobby! There are soooo many techniques to use with beads. My favorite was always making spiral ropes.
Good luck!!

Heather