3.3V pro mini & xBee

If I am using this 3.3V Pro Mini http://www.sparkfun.com/products/11114

and this xbee series 1 chip antenna http://www.sparkfun.com/products/8664

Can I connect the pro mini's RX & TX pin directly to the xbee's TX & RX pin, since they both work on 3.3V? thanks

Abolutely!

Don't forget to connect power and ground, too.