Dynamic menu for travel site.

Hello, currently I am looking for a highly qualified Joomla Programmer to modify an existing menu module called JA Transmenu that has already been updated to work natively with Joomla 1.5. The menu will be used on a travel site , there are currently several hundred articles within the site and this is expected to be expanded to 10,000+. How the menu is hoped to work is the country is divided into multiple regions and there are several key cities/towns within each region, I would like to have the menu dynamically display all articles relating to each city/town when viewing an article related to the city in which it is based. The idea behind this site is to provide info and tips on a huge range of siteseeing and general recreational activities to do on a uk holiday. the problem is we have a alot of articles to be placed into the site and the menus will be very unusable in a short space of time. so we would like a menu system that changes its content depending on what you are looking at so in London you will have only menu items relating to london. we would like to have a different menu for each city. Also there will not be certain menu items in all places so in Sight seeing/garden parks etc there will not be Scottish heritage in england and vice versa there will not be english heritage and national trust when looking only at scottish cities. We currently have mutiple sub-menu items relating to everything from sight-seeing to places of historical interest and famous fiqures in history. As well requires the component for filtering menu items based on an article location field, I need another module done that creates a coloured rounded corners with dropshadow box around text to highlight tips and important info within an article. Also requires graphical touch over new website to provide it dynamic look and feel. Thank you