you can do things like [solparmenu] then define the attributes in the xml, and then elsewhere define [solpartmenu:2] and in the xml tell it to use a different set of CSS classes for the formatting.

 Now both menus will be following the same navigation path, HOWEVER you can tell one or the other to start at a different level. For example you could tell the horizontal to only show root items, while the left vertical one should show just child nodes.

By drop down do you mean like a quick links dropdown selection? If so look at the free one on Snapsis.com

For the horizonital 1 level I will assume you want it to just show root?

For the 2 level side menu can you discribe it a bit better? Do you want it to start on level 2 and go from there or just show 2 levels ?

Thanks for the explainations.