The A330 can be downloaded from Project Opensky (http://www.projectopensky.com). ; Just make sure to download the base packages before trying to add the airlines' packs.  Also checkout POSKY's previews forum.  There is an A340 that will be released very soon.  As for the others there are a number of very good freeware models for all of the planes listed, except they do not have virtual cockpits.  For good DC-10 aircraft without VC's checkout http://www.sgair.net. ; I have a few of these.  Just add a good 2D panel and it works great.  Finally, for the DC-9 and the MD-80 series aircraft check here for these planes by FFX.  They are very good, except they again do not have VC's.  I'm sorry that I could not be more help.