Once I was fond of wildlife and I can advise you to turn off the flash, when shooting in a zoo, it is useless with it you will not be able to photograph animals behind glass. SLR camera blurs the front and back background, it is better to look at...
Ohhh, man, this is sweet!! Gotta upgrade my gear too. I have a gun, but I don't use it as much. I like hunting like our ancestors. I like using arrows, knives, things similar to these. Makes me feel closer to our roots, I can't explain the feeling. It's manly, it's unique and of course, natural...