Random responses:
Instant runoff voting works quite well, actually, and does allow people to vote their priorities and consciences as their first choice. The tactical part comes in with the 2nd and 3rd and however many following candidates there may be. And the whole, trite "spoiler" argument would fly out the window.
Article II, Section 2 of the U.S. Constitution enumerates the powers of the Presidency. If you read it, you find that it is very limited, not absolutist, and much of it requires the "advice and consent" of the Senate. It is only in the last 100 years or less, mainly since FDR, that the power of the Presidency has exploded. And I don't refer here to the establishment of departments of the executive branch (e.g., EPA, HHS, Interior, etc.). Those are fine, for the most part.
Two of the most obviously significant things that increased its power were the implementation of the Executive Order, which I already mentioned; and the War Powers Act—allowing the President to wage war (even on a whim) without an official Declaration of War from the Congress, as originally required by the Constitution, and is why there hasn't been an official Declaration of War since WWII.
There are others as well, such as Fast-Track Authority, a very bad thing.
These above points alone, along with others, are a lot of the cause for the short-sightedness Lucifer describes, or rather, the ability to enact that short-sightedness.
KamP, I don't think you have any idea the amount and extent of legislation the Congress deals with daily. The press is partly to blame for this, only usually reporting the major bills. But it's a lot. Representative democracy of some sort is highly practical in this regard. Remember, you have City, County, State, and Federal levels of government. You really want to vote on every (or nearly every) piece of legislation on each of those levels? And what about Conference Committees? Remember, most legislation goes before conference before it even reaches a vote. And then there's more. It's involved to a degree I don't think you grasp. Watch C-SPAN for a week.
What you want—some sort of direct democracy where all citizens vote on most legislation via their computers—would possibly only be even conceivably workable with a very small, stripped down, limited and largely ineffectual government, and probably only at the local level.
Actually, even locally it would still be a pain in the arse. Have you ever paid attention to the kinds of things your local Board of Alderman or Supervisors deal with? Oh, and nevermind the fact that a very sizeable portion of the public, mostly poor, still don't have computers and/or internet access.
But as I already mentioned, I do believe the representation in Congress should be greater, with more Representatives answering to fewer constituents. This will give those constituents more leverage.
Which reminds me of another change that must be made, and that is in the drawing of Congressional disctricts. It is extremely wack right now, completely rigged in nearly every state, with the national parties often having a slimey hand in it. Research for greater detail (a great example would be what Delay had a hand in in Texas last time districts were redrawn).
But you did point out something I incomprehensibly forgot to mention, and that's the money in politics. It's crucial. As I see it, elections should be publically financed only, and the broadcast networks (which are supposed to belong to the public) should be mandated to provide adequate and equal time to candidates.
My train of thought has now derailed.
