Two players I really like....
OAK- Quintin Moses. He should start right away on the side opposite Burgess, and flew under the radar in my two dynasty rookie drafts. I was able to get him at 4.1 and 4.11 between the two leagues. (16 team leagues) He was the first pick in the 3rd round by Oakland (3.1).
DET- Alama-Francis. He is a bit of a project, and could be a DT after all is said and done, but the Lions took him at 2.26 and especially if he stays at DE could be a very solid pickup in a year or two. I took him in the fifth round in one league. He's a player for your taxi squad this year, but has great upside, especially in leagues that start DT's and DE's seperately.
Those are my two value picks for DL this year, but I was also able to get Jamal Anderson at 3.1 in one of those leagues, and he's all but a sure starter in Atlanta. 4-3 DE's are getting harder to come by, but I like these three as value picks in rookie drafts this year.