Need advice buying a car long distance

I'm considering a purchase that's on the other side of the country. I've never bought long distance before, can those who have done so help out with the details?

How was payment handled? How did you obtain the title? If you used a transporter to get the car delivered, who did you use and what was your opinion of the company?

I would plan, at the least, to have an inspection done on the car before committing to the deal. Anything else you can think of on the transaction?