Is there an app that does this?

Hi everybody, I'm looking for an app (on the app store or on cydia) that lets me browse my pc, but not like in the VNC apps (where I see the screen, have the mouse, the keyboard,...) but just the folders and the files in them, maybe like in a tree structure.
I mean, an app like Air Sharing but that displays the folders on my pc and potentially lets me copy them wirelessly on my iphone, or just open them (through my home network, not the internet).
For example, if you are familiar with Symbian S60, that would be SymSMB (which works great on my Nokia).

Thanks for your help.