Quote Originally Posted by FrankB
Less than a stop and, in my opinion, nowhere near enough to justify the price difference. Also, some lens tests have put the f1.8 as sharper than the f1.4 (although you'd need keen eyes to spot it).

I agonised over the same thing a couple of years ago, went with f1.8 and it hasn't disappointed me. Maybe consider putting the surplus into a set of extension tubes for close-up work (no additional glass to interfere with your existing optics, there's a 3rd-party manufacturer that does them with AF so your N80 will still TTL meter through them) or look at chopping in the 28-80 for a 28-105 (better optics, useful range and a semi-macro facility).

You might also want to ask around here http://www.nikonians.org
Thanks FrankB
I think I'll go with the 24mm, I like the idea of having something a little wider than my 28-80 and a couple primes.

As for the extension tubes. I have looked at them(I believe they where from kenko and they did support AF) but wondered if the added weight could harm the camera.