Get them all now. The best DVDs I own with the possible exception of Brainstorm by John Guastaferro.
If you only get one then three is very good, lots of tricks i use on there. That said four is amazing too, has the best version of the invisible palm ever and a sweet ace production from a shuffled pack. 1 however has sam the bellhop and all the false shuffles that come with it not to mention a hilarious acr. And now that I think about it volume 2 has one of the best card tricks I know on it as well as the hilarious bill in lemon routine.
You know what, just get all of them. If you have any regrets I will be very surprised.
Tom