This tool lets you create a database of PS3 games and search through it easily. You can build your own database of collected games in CSV format and use this tool to view and organize it. The db.csv included is just an example. You have to build your database yourself.

I have uploaded a new build of the PS3 Games Database 1.6 with some new features:
Added scanning of ISOs via FTP (untested)
Added a "Location" field that can be used to label the volume where you have stored the game physically. e.g. Game X in DVD15, Game Y in HDD2
Added 5 customizable Tags fields that can be used to add more information. By default custom tags are: Genre, Rating, Status, Year, Custom. But these "tags" can be customized changing the names in tags.txt and the custom values in the text files found in the "tags" folder. The tags accept any value; the lists are only used to help entering the values faster.

The link to download the new version is the same.

IMPORTANT: You must save your existing database before adding new stuff.

Regarding your dreams:
There is a way to delete files from internal directly from XMB using XMB Manager Plus.
Since the version 04.01.01 of multiMAN/mmCM you can install package files remotely from net host: