I’m no expert on that particular camera. But the first place I looked was on Ikelite’s website as they carry some of the most affordable housings for most cameras. Nothing for that model. My second choice for housings is Bluewater Photo, and again nothing for that model. I googled and found one housing made by Nimar, but never heard of them. Here is a link: http://www.amazon.com/Nimar-Underwater-Camera-Housing-18-55mm/dp/B0040TCG9K
If you are just getting started my advice would be to start with a good point & shoot camera with strobe. The cost will be much less, and easier to manage underwater. I went the dslr route myself and tired of it after a year because it was just too damn big, and sold it all. I scaled down to a small Canon s95 which still has full manual controls. But there are a bunch of new ones just like it coming out every day it seems. I would recommend you see what your local dive shop sells. It will be easier to get help and tech support from them. If not, try the website www.bluewaterphotostore.com for some good advice. That’s my $ .02 :-)