Simple as that...No technical setup.
Just define the tasks, and send an invite to some people.
You can even ask him a few simple questions on the task (Did he find it difficult? Was she satisfied?...)
You can not solve all your problems yourself. Because you're too busy. Or because it gets complicated.
Let us help you out. We use a wide scale of tools to get your problem fixed: Questions about navigation? Struggling with your Web Analytics? Usability questions. Let us know!
We would be glad to help you...or get someone in your neighborhood to give you a hand.