Anyone found a ring, amulet, or even a piece of armor that casts light? I have a spell that has a ball of light follow me around for 60 seconds, but it kind of svcks.

In Oblivion I found a ring that cast light and used it for about 90% of the game, but haven't found an item like that yet in Skyrim. Would be a big help in dark dungeons. Either that or night eye, haven't even seen a night eye potion.

Anyone find one and where did you find it?

You get a Magelight staff from Arch-mage Aren at one point in that quest line. Otherwise, I've not found anything besides torches - mostly extra light isn't much needed in this game: these are literally the best-lit dungeons I've ever seen.

There are torches. And flame atronauchs i think cast light. There is also a spell that shoot a sticky ball of light, not just the one that floats above you. You can stick enemies or companions.