Illustrator CS3 - saving PDF proofs / cropping question

Hi - I just got Illustrator CS3, after happily using CS2 for years.

I work "sloppy" - elements of my design hang out over the edges of the artboard,

and I push things out to the side in case I need them later.

This was never a problem in CS2. When I would save as a PDF to send to a client, all they would see

was the artboard (defined by page setup).

In CS3, the PDF I create (which takes 4 more steps than it used to.. grrr!)

shows the client everything in the document! Even if I throw a clipping mask on it

to make the extra stuff disappear, the white space is in the PDF.

I hate this!!

I found if I create a PDF through the print dialog, in the good old Apple OS way,

the cropping works as it should, but I have no options about saving with compression,

which means the files can be too big to email.

This is seriously messing with my workflow!!

Can someone tell me what I am missing here?

Thank you.