We used Barreca Blactop 630-455-0262 on two occasions. They were great for covering the cracks and resealing and recoating the entire driveway. It cost between $135-150. (we have along driveway, if that helps.) Once we tried a company out of West Chicago, they were cheaper, but they didn't do a very good job.
Thanks to list members for the referral to Barreca for driveway sealing. They did a great job at a very reasonable price. I would definately recommend them