Replying to Help me pick a lens please

So I just got a T3i and its the first decent camera I have ever owned really. I am excited to get more into videography and photography. I want to get a wide angle for it and I have been hearing good things about the tamron 17-50mm f/2.8 but it is a little out of my price range since i just dropped most of my money on the camera. Is there a wide angle worth getting in the $100 range? Or should I just save up for something like the tamron?
Thanks in advance.