You should check out T-Fal's EZ Clean Deep Fryer. I bought an older model years ago, and loved it. Haven't used it in a long time. The heating unit was removable from the bottom, and you could put all the parts in the dishwasher. It even came with a plastic container and cover, which had a filter on it to clean the oil, so all you had to do was set the part that held the oil on top of it, and the oil would drip through the filter, into the container. Put the lid on, and stick it in the fridge if you wanted. Here's a link to their newer model:
