Sharon, there are lots of different kinds of needles out there, and they range from expensive to fairly inexpensive. Before you invest lots of money in needles you may not like (or even in a hobby you're not happy with), it might be best to just get some cheapo needles. You can find them at Michaels, Jo Anns, Hobby Lobby, or even thrift stores.
If you decide you're going to stick with knitting, then maybe you can find a local yarn store (one that specializes in high-end yarns) and see if they'll let you "test drive" some of their needles. Once you find what kind you like (straight, circulars, interchangeable circulars, wood, bamboo, metal, specific brands, etc. etc.), you can then either search for good deals online or come back here and find out where to buy them.
This topic has been covered many times on this forum, so you might also want to search for "best needles" or recommended needles" and read through those threads.