I agree with Mark, when I shoot basketball, I always get as low of a perspective as possible, usually kneeling or sitting on the floor. From that vantage point, it always makes the players look like they are jumping higher! One other suggestion I have if you want to shoot alot of basketball, or any indoor sports for that matter, would be to invest in a noise reducing program, such as Neat Image (there are some others, but I just got done shooting five hours of basketball, and my brain is fried and I can't think of the names!!). I use Neat Image, and it works great as a plug-in in PhotoShop. I think it was about $50 - 60 online.
Here is an example shot at an ISO-1250 and ran through Neat Image:
Especially when shooting the little guys, if you get down on the floor and shoot from their level, it just seems to result in a better image.
I hope that helps a bit! It's too bad that is the last game of your season...now you will have to wait to try some more! I love shooting basketball, and the thrill of getting that perfect shot makes the 50 throw-aways in between all worth it!!!!