Mike Waters wrote:
camera bodies come and go, glass is forever. I do not recommend third party lenses. Though the glass on my sigma 105 is tac sharp and i get great images it is slow loud and i miss alot of shots. If you go canon i would stick with canon glass.
There are slow, loud Canon lenses too. Don't judge a lens by its label. Read a lot of reviews and if you can try it on your camera body.
I would keep the 18-55 for habitat shots, etc. It may even focus close enough to get most snake shots. Sure, it isn't as sharp as a 90mm macro, but it will get you some great shots while you are saving up for a 90/100 mm macro.
That kit lens will focus down to 9.8" and will fill the frame with something as small as a golf ball. That should meet your needs while you learn to use the camera.