Drop down menu .....DHTML or Flash? on Image map How to proceed!

Hi Folks, so im gonna renovate my anime retail shop and been doing some designs and wanted a drop down menu from a image map and wondering how i should proceed? I have sourcetec dhtml menu software and Flash cs5 and i was initially gonna use the dhtml software but thought it might be best to use flash software but not sure how to create drop down menu’s from the flash software after using a base as background. i have attached screenshot of what i am intending to do … and would like to know which route i should i take… or if completely different software i should use? I circled the area of the dropdown menu i am aiming at