I do think investing them is a good idea. Which ones you choose is personal choice. I do not like the Boye Needlemaster myself. I have Knitpicks Options nickel plated that I love and a few Harmony wood and I like them, too. They sell a Try It set that I recommend trying first.
HiyaHiya are a good set (I have friends with them), and Webs also makes some (they have a trial set as well) that I've heard are good.
Antares is correct- there are a ton of threads if you search the forum.