I just bought an H&K Expert. I also looked at the Tactical. I think I was quoted around $880 or so. You might want to feel what that trigger is like on the DAO first. I did not like H&K's DAO trigger and it is what I wanted at first. Real heavy compared to say a Glock. One of the reasons I went with the Expert is it had a pretty decent SA trigger and I can carry it cocked and locked if I want. I also just did not care for the threaded barrel on the Tactical.
Good choice on the H&K and good luck.