I have to agree with Dipper to some extent. Although I like poplar (aspen), I think you'll be amazed at the stump sprouting from the maples. The oaks will likely loose out to the maples, so don't count on them much. Unless you do some manual cutting in year 2 or 3.
The regen will be so intense, planting anything might be unnecessary. It's been my experience it takes a solid 3 years for regen to amount to much. Even a few deer will keep fresh stump sprouts pretty short for the 1st year or two. They are the best food in the woods in Feb. around here.
If you do want to hurry things along, a couple rows of hybrids would do the trick. Until the leaves fall at least. Without seeing it first hand I'm kind of only guessing, but if it were mine, I would plant a few rows of hybrids and some norway spruce. In 5-6 years the norways will take over. Until then the hybrids will be the screen. More rows, far apart is better if you can swing it.
(edit, I didn't answer the original question very well).
I wouldn't mess with poplar (aspen) seed. They are SMALL and likely very difficult to plant. Have you ever seen that white junk on your windshield (or fishing line) in the spring. That's poplar seeds. They are smaller than small. I can't imagine trying to broadcast them!
-John