xbee+wishield +duemilanove

Hi,
I am new to Arduino.
Is it possible to interface both Xbee shield & wishield to a single Arduino Duemilanove ??

Thanks in advance..

Which XBee shield and which Wi shield?

Thanks for the reply.

How about Arduino xbee shield :
http://www.rhydolabz.com/index.php?main_page=product_info&products_id=512

XBee 2mW Series 2.5 Wire Antenna
http://www.rhydolabz.com/index.php?main_page=product_info&products_id=629

and Wishield2.0 from Async_labz