There is some real words of wisdom in Normand's response very early on in this thread. Instead of buying materials that you "should have" buy materials that you will definately use. Al Campbell's artciles on this web site are great to read. http://www.flyanglersonline.com/flytying/kit/

You come up with your own patterns that you like to fish but some solid basics like the following wouldn't be a bad place to start:

Bugger, Prince, Gold Ribbed Hares Ear, Adams, Elk Haired Caddis.