I'm very new to sports photography. I will be getting a canon XTI in the next few weeks. For the past few years I have used the Canon A95 point and shoot camera. I've always been an advanced user but you can only do so much with a point and shoot. I was hoping that some of you might have a few suggestions for a lens. I am on a pretty tight budget so I cant really spend more then $1000. I was looking at the Canon EF 70-300mm f/4-5.6 IS USM. I liked the focal lenght and read some great reviews. I am a little concerned about the aperture while shooting at a higher shutter speed. Right now I would just be shooting for my own pleasue but if I can become a decent shooter I may start doing some professional work. I work for a large news service as a radio producer. In the past I have taken pictures that have been used for our photo service. I have access to a lot of major sporting events and the company would find it cost effective to have me produce and take photos. I would greatly appreciate any suggestions from users. I've saved a long time for this new camera and I cant wait to get shooting. Thanks!