The 3.0 starts out at 39,545. The 4.4 starts at 50,045. The 4.6is starts out at 66,845. Now of course you add in all your options and you start looking at around 46,000 for the 3.0 up to about 70,000 for the 4.6is.
The prices on some of the certified pre-owned are not looking too bad. You would just have to go to your local BMW dealer and look or go to
www.bmwusa.com and they have pricing there.
Hope this helps.