Just FYI, I didn't mean to imply that your anniversary is NOT worth celebrating, because you're not married.  I just think the traditional presents are better saved for a married relationship.  Gotta save something to make the big leap EXTRA special, you know?  Dating isn't marriage, or so I think.
Your day is most certainly exciting, and I'm happy for you two!  I re-read my post, and I feel it can be misread.  My bad.
There are many ideas of what anniversarys are tied to what presents.  Here are a few links:
Modern and Traditional Gifts, a List. 
The Paper Roses Page 
Wedding Gift Catalogue By Anniv. 
I hope something in there will help give you ideas, and make your day as sweet as I'm sure you both deserve.   
