Hi Yankiwi,
Take all you can from all those guys, especially '18wheeler', he has lots of good experience on type - we used to fly together in the 742 until recently!
Also, when rotating at T/O, use the 3deg/sec rule so you don't get a tail-strike, that's too easy to do. The tail hits at about +11.5 deg with the MLG still on the black stuff.
I think the best type for your practice run is the B727, the cockpit layout is almost exactly the same (minus one engine, of course), and you will get your first look at a three crew environment, the best way to go!
Good luck