Sharing htpc library

I use usenet to download 1080p/720p mkv's for my htpc. I've just bought new disks instead of deleting movies.

Anyway, I was wondering if there might be somewhere where people in similar situations share their movie libraries? I just figure it be cool to browse and download from others.

Anyway, I remembered dc++ from maaaany years ago, so I went into one of the largest swedish hubs. The problem is that everyone are sharing so much else than what I am looking for. A guy on the hub said there were something called RAR hubs, but as I understood him, you needed the original RARs to enter? He was a little cryptic, so Im not sure I understood him right.

anyone care to enlighten me?