Henning & Gabriel,
Thanks for the comments again, which have helped steer me. Doing the Flickr and google searches, etc... have helped in looking at these suggestions.
Considering the size issue, the desire to go with a 90, what I'm looking for in signature, it looks like that it will be the 90/2.8. For the uses I will have of the 90, I think 2.8 will work fine for speed.
Once again - thanks for the suggestions.
Best,
Ray