before the usual characters start spamming and beg you to just use their system, i will give my opinion...
Use flash/macromedia and build it yourself. you will not be happy with anything else if you want to have control over features, functions, source code etc. every "turn key" system is shit and innadequate and like most overpriced software, is nothing more than a programmers idea of what someone wants in a business that he has no real understanding of.
