I have the poor-mans version:

http://www.amazon.com/GoFit-Elevated-Chin-Up-Station/dp/B0027ICCTA/ref=sr_1_8?s=sporting-goods&ie=UTF8&qid=1430508787&sr=1-8&keywords=doorway+pullup+bar

that + metolius rock rings hanging from the eye bolts you can see. It works great, feels very solid once its up there with weight on it.

Some day I'll probably saw off the two parallel handholds in the front and attach a nice sheet of wood for a hangboard, but I haven't felt the need yet. Though another 6-8in of height would be really nice to prevent having to hang with bent legs, and I could get that by just extending the wood up a little.