The *This is Me* series by Jennifer Lyon is one of my favorites in the Stargate fandom.
It is a very sweet series of stories where Jack and Daniel come to realize their love for one another and start up a relationship. The first two are basically pre-slash, but the build up is needed to show the emotions that Jack is realizing he has for Daniel. This is a very romantic series that has a few emotional ups and downs for the boys, but they stick together through it. Parts 3 and 7 are NC-17, but the rest are PG-13.
The series is:
This is Me
Coming Clear
Coming Together
Coming Home
Who are you
Coming to terms
This is us
While you are there check out the series she co-wrote with Graculus called The Price of Knowledge. It is great. It has a sequel that is a WIP, called Equilibrium. If you don't mind that it isn't finished yet, check that out too.
Both can be found on her page along with all of her other fanfic from many other fandoms at:
http://members.aol.com/xfwriter/stories.htm
You can also check out Graculus' page at:
http://members.dencity.com/Graculus/fic.html