Hi I'm intrested in experimenting with photography in the water. This would mostly be photgraphy on or near surface (surfing). Because im just getting into it i do not want to spend thousands on fancy underwater housing. So i have seen some "plastic bag" type housing on internet. This is basically thick plastic and you have to press buttons etc thru the plastic. Anyway im wondering if anyone has any experience with this equipment. Or maybe there are other alternative options that are also cheapish? Thanks for any help.