Programming Arduino Mini Pro. with Arduino Demilenova?

hi fellows, im just about to purchase an arduino mini pro. i have two questions in my mind... Can i upload sketches onto Arduino Mini Pro. over Bluesmirf GOLD or over Arduino Demilenova???? ( which is possible to use as a ISP-Programmer for programming attiny85 etc. chips )

if it is possible i'll save some money by not purchasing usb-serial converter chip it's quite expensive... :/

i found this page it says that i have to take of atmel chip on the duemilenova and connect arduino mini pro instead.then i can program it? is it correct?? is there an easier way that i can program arduino mini without taking of the duemilenova's chip??