My G10 (purchased two months before the G11 came out, but I wanted it for a trip) fits nicely into the large OpTech Neoprene pouch:
http://optechusa.com/product/detail/?PR ... EGORY_ID=5
It is not water resistant, not waterproof, but then put the whole thing into a ziplock bag and you should be in business. The outside zip pocket is perfect for a couple of extra batteries and cards.
You received good advice on a prosumer instead of DSLR for your needs, and you should be very pleased with the G11.