||Top Ten Digital Photography Tips|
Response to: Camera settings
The aperture needs to be in the f1.4-1.7 range to acheive the results you want. Allowing in more light (f1.4) allows ISO 400-800 for a High School gym. For indoor sports 1/125 is the slowest you can go (IMO). These settings are W/out flash. Unless you strobe the whole gym (impossible unless you're Nike) then flash won't look right. The players may expose right but everything else will be too dark. A lot of camera's will only sync to 1/60th which is too slow for sports.
It all starts with the right lens. Without that, you will always be frustrated.