Are you going with an organic fertilizer? Soybean meal or Milargonite?

If so you can apply those right now before the seed germinates. They really won't kick in for a couple of weeks so the timing will work out great, just as the seedlings really need a boost. And it will last almost until that last fall application.

I am not going organic... my lot is too big and it will be way to heavy for me to sludge the amounts of stuff I will need.

I was planning on just going with the Scotts stuff. i have around 15000 - 17000 square feet. I put down the Scotts Starter at teh recomennded rate at the same time that I seeded.

You can go organic without the hassle, just use a concentrate. Most you can use one quart per 1,000 square feet.

What do you mean a concentrate? A concentrate of what?

When I asked about organic, I was thinking about soybean meal or Milargonite. Each come in bags that cover 2500 sq/ft per bag. You apply them just like any Scotts or other synthetic fertilizer, through a broadcast spreader. The nice thing about organic is that it takes a week or so before anything happens. then in the 2-6 week span is where the grass really gets a boost.
The nice thing about this timing is that when the starter fertilizer runs out of steam, the soybean meal or Milargonite kicks in. And you apply it before the seeds germinate. This is good also, because you won't have to be walking or driving on the new seedlings.