File explorer for LG Optimus one (Android)

What I mean by best file explorer for Android? It should easily navigate to your microSD card. It should be able to access your (home) network contents. This is especially important because this allows you to get rid of the usb cable.

The file explorer which I am using for these purposes is ES file explorer. It is free and you can configure (map) the network drives. Once it is done, just tap the LAN and all the mapped drives will get listed. It is as easy to use as Windows 7 Homegroup. You can play music/movie files in your phone like this. It allows copy/paste from network computer to micro SD card. Really useful software.