I just successfully exported all 3,000 delicious bookmarks to my computer, then imported them into Firefox, and then imported them to Google Bookmarks through the Google Toolbar using these instructions:
http://techblawg.ca/2010/12/17/exporting-bookmarks-with-tags-from-delicious/

Worked great except that Google Bookmarks uses "Labels" instead of "Tags' so all my pre-existing Google Bookmarks have labels and all my imported bookmarks have the label "Tag:*" and all reside within the "Imported from Delicious" label...

Oh, and I lost all of the notes associated with my delicious bookmarks, none of those made the import although they did successfully make it out in the export... Lame.