I'm after a really simple version of MS project.
In MS project, I can add a resource (a person), set their working hours per week and cost. This means when I add items to the project and assign them all to this 1 resource, by simply changing the hours working per week I can see the completion date and cost (a simple hourly rate (salary) in order to know a cost for this very simple project).
I've tried MS project, but the cost is too steep and it's over kill. Plus, I'd rather it be online software.
Tomsplanner (web) seemed OK but doesn't appear that you can add resources...
Please note, I'm fine with paying, but, this project is probably short lived, so it's not worthwhile with a large investment, but anything with short contracts/pay per month may be a great solution (or free).