I can't speak for the others, but Hexen is an older game that's actually pretty easy to play on modern machines. It's based off of the Doom engine, so there are several
source ports available that are compatible with it. You'll still need the actual game data (hexen.wad) off of your install disc to use any of them, however.
You've got a few options. I recommend
ZDoom - it's flexible, but still retains the overall look-and-feel of the original games. For something more towards the eye-candy end of things, check out the
Doomsday Engine - it adds all kind of visual effects like pixel-blurring, colored lighting, transparency/alpha-blending, and lens flares all over the place.