Where I work, "administrative professional" is code for secretary, and those who are administrative assistants handling budget, contracts, etc get offended if you lump them in that category. So we generally take the secretaries out to lunch or give them flowers and a card and don't do anything for the administrative assistants.

I don't have a secretary any more, so my branch gave a nice greeting card and a gift card to the one who helps us out with travel orders. I got a card for the woman who helped me get three promotions through this year, but I was advised not to give it to her this week because she would be offended.