[CompuDude]

Coming from cold water diving, Fiji will be like a dream.

Be sure to use the diffuser panel that snaps onto the front panel. It evens out the flash, else you'll have a shadow on your macro photos. The macro mode with internal strobe works VERY well, however. The biggest hassle is shooting critters that are skittish about having a camera 2" from their face, or shooting critters that are wedged in a crevice somewhere, making it tough to get the camera within 2" in the first place. The 2' limit on the flash is well taken, however. It's digital, so feel free to experiment and delete a lot. You'll learn the limits of the internal flash very quickly.

Are you current using an SLR (film) or a DSL (digital)?

The S70 is a good camera, even can shoot in RAW, although the write speeds are terrible. Use the UW mode or RAW (if your ok with the write times and monster file sizes) until you're really comfortable shooting, at that point you may want to experiment with using the white balance and shooting full manual instead of the UW mode.

The 130' housing rating is actually somewhat conservative, although you're SOL if you go pas the limit and it floods. I know people who have taken their Canon housings down to 150' with no problems. Realistically, it will be fine to any normal recreational depth... and definitely fine at any depth a new diver should be contemplating.