1. Capture!, simple and works. Wish there were more features, but it's DVR abilities are great!
2. Road Runner (I use Centrafuse now, but I try to go back to RR every now and then.)
3. FreeIce, so much potential, so fast...don't know about it's future though.
4. Mitch's HD radio plugin/cable (bug free for me from the start, best support ever).
5. LSXVoid 2/3.0 the skin that made me an RR convert, best playlist management of all skins. Wife loved it, but it does not work for me anymore. Back to Centrafuse.