Getting ready to bite the bullet and get a Humminbird. Been saving my pennies for awhile and have enough to buy either the 1197 or 997. I looked at the 1197 and it seems a bit overkill and not sure I would like something that big on my console. So been watching the 997 on ebay. Can someone who has one tell me if this is good and everything I need?

HUMMINBIRD 997c 997 SI COMBO NVB FISHFINDER GPS NEW - eBay (item 220379867662 end time Apr-16-09 15:23:01 PDT)