Excellent list Goldeneye... I agree that most of the women you've mentioned are sexy, though I feel some are simply, rather than strangely sexy.
I too am a Constance Zimmer fan... having such an appealing, understatedly attractive woman in a show is the ONLY thing that's ever gotten me to watch that show and so many other bad sitcoms, dramas, etc... Cripes, the only reason I watch Becker reruns (aside from the fact that the only alternatives that early in the AM are infomercials, and of course my persistent insomnia) is to see the two brunettes on the show... the one who runs the coffee shop, and the younger bustier one who is Becker's ditzy assistant. Being able to watch the two of them in knit tops (especially the assistant) is the only saving grace of that unfunny (and otherwise unentertaining) show.
I'll add to the list the brunette actress who plays the daughter on that NBC? sitcom staring John Laroquette and Christine Baranski... it's pretty bad too. You know the daughter... she has a funny voice, short hair and also does commercials for Glad garbage bags and plastic wrap. I've already mentioned that IMHO Baranski is a handsome and appealing woman (as is Greg's mother on 'Dharma and Greg') ...neither is my personal ideal 'older woman' (for that, I'd have to specify Mimi Rogers

) but both are easy on the eyes and appealing in their own way and I enjoy seeing them.
Speaking of older women (in this case, the better part of TWICE my age) I saw Barbara Walters on Conan the other night. Now, don't get me wrong... I dislike the superficial, fawning, **29** obsessed prattle that passes for journalism on most (all recent) Barbara Walters Specials, but she herself is in pretty good form for a woman who, I assume, is comfortably past 60. Yes, I'm sure 'flawless, firm and fit' would be the last words that came to mind if I were to see her naked, but those words aren't prerequisite for sex appeal IMHO. If I were some pushing-70 hubby with a bottle full of Viagra, I'd be pretty damn grateful to have a wife who looked liked Ms. Walters (or Diane Keaton, or Christine Baranski, etc...) instead of the alternatives.