A few more comments from the peanut gallery 
In sspellmans example, there is far too little time allocated for pre-planning or post-production work. With 6 hours billed for a 4 hour shoot, that only leaves 2 hours to contact, cast, schedule, and otherwise organize the shoot, do any post processing, image selection, and burning CD's. There will be considerable client interaction, they may get involved in picking the models, image selection, etc.
I've done hundreds of similar shoots for clients, and in 95% of the cases, a 4 hour shoot entails an additional 6-12 hours in client interaction, galleries and proofs, selection, model casting, paperwork, etc. So make sure all of that is included in the rate or you'll end up working for $8.23 an hour when all is finished. Its amazing even on a simple shoot, if you add up all the time spend with regard to that shoot, it can usually outpace the actual shooting time by a wide margin. So make sure you plan for it, and more importantly, bill for it.
Also, check what the local market rates are for commercial work. In a medium market, such as ours in Boston, generally its about $1,600-$2,500 a day depending on photographers skills, complexity of the project, etc. When I shoot in New York the rates are higher at $2,000-$3,000, and in smaller markets the rates are lower $1,000-$1,500 a day. Check around rather than leave money on the table that would be better used to grow your business. Once you get known for a price point, its hard to change even as you grown and progress as a photographer. So make sure you at least get the going rate in your area, rather than fight a harder uphill battle.
Lastly, usage is the norm in the commercial market, even if you decide to include it in your creative fee, make sure its still reflected in your rates. For example, if you go with the low end rate here at $1,6000 a day, if you include usage, you should increase that a suitable amount to cover the usage fees. If the client is more sophisticated, they will generally expect to see the usage fees separated so they can budget for future usage. Ie, if they want to extend the usage for another term, if the usage is spelled out they know exactly what it will cost them right up front. That eliminates the fear on what it might cost them to extend in the future, since its spelled out right up front, and not hidden where the photographer can later come back and charge them whatever they want since it was never specified.
Also check on the fees for talents, makeup artists, stylists, etc. They vary widely. The examples listed above wouldn't cover the expenses if you go through an agency here in the Boston area, but might cover using inexperienced models from internet modeling sites. You may need to be resourceful in finding talent for low rates, which will cost you more in time but less in costs. Just make sure your time is covered and billed for.
As sspellman noted, those rates are appropriate for a small business in his area. The rates I've listed are what I see in my market (Boston/New England). They may or may not apply to your area and client. Its all a balancing game, but the more information you have, they better balanced your estimates will be.