Basecamp is too minimal for me but really functional, zoho is kind of cool, and I've not tried the rest. If it's for Bull Spec, I'd say try Basecamp first, because it does what it does and does it really well.

I'm a visual person, and like gantt charts and calendars when I'm planning things out. Maybe Gantt Project (http://www.ganttproject.biz/) would work for you for that....