Hi Simon!
Thanks for your quick reply 
> as long as you leave at least 20 mins before
> each listen, or longer
shoot, is that necessary? my first and second listen are hours apart (before and after work) but if i do fit in a third listen i'd like to do that right after the second one (getting back home the bus takes about 45 mins and i wont be listening to it once i get home). well no big deal, even twice a day should be decent 
> sometimes I have wondered myself if I am
> actually asleep or in such a deep state of
> relaxation that it feels like Im asleep.
u mean u wonder this WHILE you're asleep / relaxed?! that sounds pretty cool. are you able to control yourself at those times? (say, moving your arm or something).
> How have you found listening to Self Esteem so
> far, are you noticing any benefits for you? Do
> you feel happier after you've listened to it?
Nothing yet but I havent been regular so far. Earlier on I was listening sporadically, now I've started 2 or 3 times a day since day-before-yesterday. Lets see how this goes! Dont notice any change in mood right after llistening to it though, often I'm asleep and am forcing myself back to being awake 
Cheers!
Dan