i think colour kenna flamed very badly here... poor guy
anyway, colour... u've read wat everyone said, the final decision is up to u. before u fly off for your trip, take some test shots with your new 30D with the various settings... transfer them to your computer and view them at 100%... & ask yourself, "is this setting good enuf for me?"
if yes, then go ahead and use tat setting.
but u've got the 30D man... utilize it to its full potential.
i use the 8GB seagate microdrive... got it at $79