Looking into getting my first fly rod..

Hi all..

Been an avid fisherman for many years and finally decided to try out
fly fishing..
Whilst a little intimidated, skeptical and overwhelmed by all the
information out there, I decided to try this forum out to see if some
of my questions can be answered..

First:
The rod and reel I will need.
I went to a shop the other day that a person runs from his garage. Has
many rods for sale and whilst he didn't have any fly rods, he offered
to sell me one of his.. He showed me many four of the ones he owns, and
except for one of them, he offered to sell me any of them (with a reel)
for $100.
I don't know what brand the rods were, but they were 100% graphite.
Two of them were 6-7, the other was 7-8 and longer than the rest. I
believe the 7-8 was 11" whilst the rest were 9"6' or thereabouts..

Second:
Casting.
I'm sure a lot of contreversy discussions can be brought up in regards
to casting.. But I want to know if there is a basic technique that I
could follow and have me fishing relatively quickly..
Is there any websites or videos that one would recommend?


Okay..
That's all for now..


Thanks for your time..