Post your suggestions. Here is my recommendations (so far)
No bloat/Mal-ware like uTorrent. Runs just as good if not better, uses less resources.
Maintenance / Temperatures in your PC:
Speedfan gives a quick overlook of all detectable temperatures
If you still have a massive music collection on your PC, then there is no better than this (my opinion). Very custimazable and uses almost no resources.
Still my preferred play everything media player. Might be other good programs out there.