What should i replace when i replace my a/c condenser on my 97 civic?

I was told that i should also replace the rest of the a/c components (receiver/drier, expansion valve) even if they are not bad.

What should i replace when i replace my a/c condenser on my 97 civic?
That is true, replace the expansion valve and the reciever/dryer, have the shop do a good flush on it, and then put the correct oil back in the system and recharge it and put some dye in. Whoever told you that is correct.