i'm a pretty pragmatic person and didn't have any emotional aberrations after the procedure at all. (i was my normal self--as abnormal as i am

.)
are you normally "very emotional" with mood swings and such? or are you normally pretty "even-keeled"? you should expect the week or 2 following surgery to be like your normal self, except a little more so.
i would tell you to think about all the different reasons you would do this in the first place. is this a commitment to a life-change for you or are you chasing the next "magic cure?" are you pretty good about following a regimen, but just need a little "can't cheat" helper? Because most anyone on these boards who's had their band for any length of time can tell you that it's hard to cheat the band, but it certainly is possible. if you're not ready to make the life-change, then you might expect to be disappointed or depressed with your results.
if you're ready to make the commitment and you've chosen to get the band because you are ready to be paroled from the prision of your overweight, then you should expect and strive for a gentle and well-deserved sense of accomplishment after you get your band. rest, let yourself heal, follow the doctor's instructions faithfully and LOSE the baggage!
i pray for your motivation and your commitment--