I would till the area before seeding. I use a shoulder strap whirlybird spreader device. As for raking in the seed, I drag my chain harrow ("chains", Tine Harrow) with my garden tractor (turf tires). One pass is more than enough. Some people use a old section of chain link fence with the leading edge attached to a 2x4, that works too. All this just barely mixes the dirt and seed together. Then I drive over the area with the garden tractor (JD 318, weight is about 800#) to pack it in. Finally, I cover it with hay or straw. Unrolling those big round bales is not fun, dirty, messy, buggy, etc. Small square wheat straw bales are easier, cleaner, but cost more. This time of year (spring to early summer) I think it's advisable to cover the ground. In mid to late fall, I've know people that have not covered and water a bit each day. A lot of that is region/weather/soil dependent, ask around in your area.
I also put down some 10-10-10 fertilizer at the same time I put down the seed (i.e. put down one, then put down the other).
Agree with Highbeam, know lots of people who don't even worry about mixing it in. Another good reason to ask around and see what works in your area. Maybee someday I'll do a test and see what works best.
Pete