I have a long time wanted to see a democratic system built on "focus groups", instead of the more general systems that are now dominating most (all?) of the democratic world. I'm not sure exactly how such a system would be built, but in essence, it would put emphasis on the unique competences of each voting citizen, rather than blindly forcing citizens to block party politics.
For example; I would expect most Slashdotters to be more than averagely informed in technology topics, while on average much less skilled in, say, childcare. In the kind of system I envision, each citizen would only be allowed to vote for representatives for one (or a few) "focus groups". (Economy, technology, military, environmental, judicial, infrastructure...) Which focus groups to vote for, I guess would be up to each citizen.
Of course there are things to be resolved, for example which focus-group would balance the budget etc. Perhaps overall governance would be a focus-group of it's own.
The point of it all would be to make people vote in areas they actually KNOW something about, rather than being encouraged/forced to vote for some person/party who you happen to agree with in one or a few points, and above that has a nice image, but you really know nothing about, or even disagree with in many other questions.