Transmission oil change
 

I have 40K miles on my car 2001 Elantra. The dealer is asking following
things to be done; -
1) Change transmission oil =$170
2) Change A/c belt = $117
3) Change power steering fluid = $135
I assume (1) is needed, what anout 2 & 3. How to check.
Are the rates OK for Atlanta/dealers. Do I need to go to dealer or go
to anyother shop. Can one do these on your own.
What is the best way to check break pads/transmission belt.
Any tips are welcome. My cars will be 5 years on 6/14. Any
checks/repalcements recommeded before I am out of warranty.
Thanks in advance