Site navigation and Internal links

[Onders]

Hi everyone - just a quick question about navigation bars. Am trying to make my site easier to navigate and although I have a simple navigation bar, am looking into replacing it with a navigatioon bar with drop down options - effectively having a site map on each page. Is this something that would be read by search engine spiders and would create more internal links?
Would be grateful for any input!
Thanks

[Mark_A]

dont know the specific answer re crawlability but if you want to include drop downs its imho not a bad solution to leave static navigation in place also.

So if mouseover on "products"

produced menu options "widget1", "widget2", "........

clicking on "products" itself would still produce a page with the options widget1, widget2, ........ listed as simple html links on it.