It sounds like that is how most people do it. just make sure you use large enough lines and a large enough breather on the catch can. if your paranoid then you can remove the breather and tie it into the intake to pull more of a vacuum. not sure many turbo people do that though.
2001 ZX3 2.0L Zetec-
Hatch Nation #42
Going through Rebuild See "The TICK Build Thread" for details (http://www.focusfanatics.com/forum/showthread.php?t=289168&referrerid=62897)