If you take a trip to Europe, you can fly Ryanair 737-200s, although they are starting to gradually phase them out - this is likely to take a few years, all the same.
L1011s are a rarity anywhere in the world now - speaking for Europe the only examples I have seen in the last couple of years have been Air Luxor & Euro Atlantic (both portugese charter carriers), so the likelihood of ever flying one of these is pretty remote. Air Transat still fly at least one - but tou'll have to be quick!
As someone said earlier, Northwest is the easiest way to fly the DC-10 these days.
727s - now there's a challenge! Gotto be Pan Am, I suppose....
MD11s - a bit easier - SWISS, KLM etc....
Still - you're 'wanna fly' list is a damn sight easier than mine - I would kill to fly the following aircraft:
Boeing 707; Boeing 720; Boeing 727-100; Boeing 737-100; DC-8 50/60/70; Convair 880/990; Vickers VC
-10; Trident 1/2/3; Vickers Viscount; HS
-748..... No, how do you think I feel??!