I recently found Paradise Fibers online and bought my very first set of interchangeable needles, (including an extra Sharp tip to try). The needles are incredible, and work well with the project I am working. The set, and the individual tips were my 65th birthday gift to myself. I found the staff to be exceptionally helpful and friendly. I'm saving up to buy again. Thanks to everyone at Paradise Fibers for all your help.
PF the best online source. They always fill my orders accurately and in a timely manner. It's my go-to online store for all things knitting.