Search - New suggestions

Would be good to have the following options:

1) The ability to NOT show the items I already have, in any of my searches.
2) Possibility to Search inside a TAG or with a tag, when the items of a tag grow it's more and more important to have this.
3) Possibility to make advanced search, for a book something like Title, Author, Genre, and part of the plot (this last one is more difficult but could bust a lot the likeness of the site), and something similar for the other categories, this is very important when you search for names very usual, or have only part of a name that is very usual.

It would be nice to have the search box as is, but also add a link to Advanced Search, where we can filter by year, by gaming platform, by manufacturer, or heck, even by Item Description.

A good example is try finding the game Adventure under Games. Its an Atari 2600, but it's buried because of all the games with 'adventure' in them. If I could filter in 'atari 2600' it would really help find it.

On the search results (any result) I would like to be able to add a movie as watched or as wanted. Now only some types of search results show these kind of links. Of course it should be extended to books, tv series, musics and games also.