Middle-Earth Role Playing is a very detailed game and game setting, it probably is too much if you just want to grab something quick and fun for a dungeon bash, but if you want something a little deeper or more serious, or use some of the setting information, it would be ok. Some complex and lethal mechanics here.
3.5 out of 5
The above link is the complete list of post from this blog, updated each week, if you want to browse like that rather than search.
This list is quite long, and has become longer than I ever thought so in the interests of loading speed it is now situated elsewhere.
Similarly I am working on a simple website to browse by author that combines Free SF Reader and Not Free SF Reader that is extremely bare bones now, and can be found at the second URL above.