A while back my family purchased a canon rebel xsi that came with 2 lenses, an 18-55 and a 75-300. I knew nothing about photography when I bought this camera and still don't know a lot. I am to the point though that I am beginning to shoot on the partial manual modes and not the fully automatic mode. Most of my photos are of the family which is why we bought the camera. But now my 9 year old son is playing football and basketball and I have been using the camera to take pictures of that with mixed results. In particular I am having trouble taking pictures of my son playing basketball because of the poor middle school and church gym lighting. I am aware that the 75-300 lense is a poor lense for this and just a poor lense in general. To hopefully allow me to take pictures in these poor conditions I just ordered a Tamron AF18-270mm f/3.5-6.3 Di II VC PZD. I also want it to be a lense that I can use when on vacation etc. I just received this lense today from B&H today and am having second thoughts. Is this lense really going to be an improvement? Will I be able to take the basketball pictures that I want to and still use the lense for other situations? Is there a better option for me Ina similar price range? Thank you in advance for your time.