Scientific Anglers, Reddington, and Cabelas, Orvis, and several other outfits have “Starter Kits”. Most of these can be had for around $100.
The SA kits are pretty good, and the Reddington Crosswater kits are decent too.
If you live in the area, the Great Waters Fly Fishing Expo is about a month away. Lots of people there that can answer your questions, you can get free casting lessons, maybe kick the tires on a rod or two.
http://greatwatersflyexpo.com/
S.R.