Just buy wat u can afford ba... Most importantly is still back to whether u know how to use ba...
The camera is just a tool to help u ease ur work.. But actually it tends to make u lazy. ;p. Last time people also can shoot sports with manual focus cameras...
17-50mm F2.8 Tamron and a flash is very good for sch events ... I believe can cover schools events very well le..
A sigma 70-200 APO DG F4-5.6.. tink focusing slow...
If u dont want to spend to much... can maybe get the 70-200 EF USM F4(or 4.5)-5.6, but the pictures will not be very sharp.
I know tt it is ur hobby... But aft all.. you are shooting for the sch ... Do u get paid?? I believe it might be just like a "sai gang".
Dont spend those unmeaningless money..Unless u can afford all the big guns and power bodies.
SAS got 30D? since when??? saint here, true blue all the way... class of SAJC 2002. wat other equipment does the school have? must go back disturb disturb. haha.