If/when you decide you want to upgrade your system, the first thing I'd do is buy a good external strobe, since that (unlike a more expensive G9 housing) will be transferrable to your next uw camera, and thus will retain its value far more than spending extra money on a more expensive G9 housing.
Also, as someone else mentioned, find and order an OEM housing sooner rather than later, since it's no longer being made.
Good luck! The G9 is a great little camera!
HI! I just managed to get my hands on a G9 and Canon housing. can I attach a flash to the canon housing? How?! (yes, I too am brand new to this!) I will be going to Honduras in 4 weeks and would really like to add a strobe to my camera. Any suggestions?! who? where?
Thanks so much!