Re: new to fly fishing
That is some good advice above, when i started out i could only get a book,there were no videos let alone dvd's!
But the dvd's available today are superb, i'm thinking of Mel Krieger and a UK fisherman called Michael Evans, but better still get a hands on lesson if possible.
If you practice on grass,when you have finished ALWAYS clean your fly line,warm soapy water or better still a fline line cleaner.
There is nothing like dirt/grit to shorten the life of a fly line.
You should be able to perfect your over head casting on the lawn, but you will need water to try the roll cast.
Best of luck in your new found hobby...sorry addiction!