What is fair alimony (OK..."spousal support" to be PC)?

I've prepared an asset distribution settlement suggestion. All based on current value whenever we decide to transfer the funds/assets. With the housing and stock markets doing their thing and cars dropping in value every day, it seems sensible to say "I'll pay you half of what it's worth when we agree to do it".

My "grand plan" was for me to figure all that stuff out (fairly, I hope) and for her to figure out the alimony question and float what she wants/needs after the divorce. Health insurance, etc., as well as alimony. That's not going to happen, it turns out. She refuses to float the first trial balloon.

If I was a jerk, I'd probably offer something like 25% of my salary and she pay her own insurance. That doesn't seem fair, but maybe it is. Essentialy I've got no clue.

And I've been asked to suggest something quickly (hence the emergency status instead of just a plain ordinary question).

The situation is she hasn't worked at all during our 14 year marriage. She suffered a disability before we married relating to a disk problem in her neck. Got workman's comp to cover it (she was a data entry person at the time). I know she could work at least half time doing pretty much anything that doesn't require physical strength and being on your feet all day. With the right kind of activity profile, I believe she could do full time, but know she won't want to (and therefore won't).

Problem is she remains unemployed and isn't looking. And although she did training after her disability (14 years ago) she never used what she learned. And, face it, knowing the MS-DOS version of WordPerfect just doesn't cut it nowadays.

So...can anybody give me a clue how to figure this out? There are calculators for child support, but nothing I can find on alimony that's useful.

So...HEEEEELLLLLP (imagine echoes in the Alps fading away into the distance).