What chess program should I get

Hi everyone,

I'm not sure what chess software product is right for me, so I'm hoping I can get some help from you guys.

What I'm looking for:

1. Can save games that I enter and allow me to add annotations as a pgn file

2. Have auto analyze and auto annotation would be nice

3. Be relatively inexpensive

4. I would like it to have an opening explorer feature simular to 365chess.com that is built into the program and allow me to see games that played that opening.

Those 4 things I would be happy with.  So which chess program would I need?

Thanks.

And then update it from here pfren, that's what you do?

http://icofy-blog.de/icofy-base/

Cheers.

Thanks for the replies, I have downloaded chessdb and it looks like it is exactly what I wanted.  Looks like it will take me a little while to figure out how to use it though.  I have cb light 2009, and it's a bit more intuitive.

The only thing I dont like about Icofy, is the lack of information. Mostly just year, and player names are included.

I got around 1,5m from pgnmentor, with event info, ratings etc, but you have to make around 30 or so downloads to get all of them, and then merge.