I have finally saved enough money to purchase a low end 300mm f2.8 non IS lens or a 200mm F1.8 lens and I am torn. Everything I have read says both are phenomenal lenses. I find the ability to shoot at f1.8 intriguing and have heard the 200mm has excellent sharpness even with the tele extenders both 1.4 and 2x. So would it be better to get the 200mm since I do shoot a lot in gyms (basketball, dance, gymnastics) or get the 300mm for football, soccer, baseball, lacrosse. I am not considering any image stabilized lens.