Scotland already runs 90% of its own affairs. What is so important about the remaining few matters which aren't already devolved?

Taxation, military spending, social security, foreign policy. I'd say that was a bit more than 10%.

The Bedroom Tax alone shows what the Cameron/Clegg/Farage/Miliband clique want to do to Scotland if they get the chance.

Question for the NO-sayers. Would you advocate abolishing the UK Parliament and having everything it currently decides put in the hands of the EU? If not, what is the difference?

The only relevant difference I can see that the UK government is likely to be run on behalf of the US by a bunch of loony overprivileged right-wing sectarians for the foreseeable future, so it's obvious why a loony right-wing pro-American xenophobe would see a difference. For the rest of us it's equally obvious that having no vote at all and having everything decided by a colonial administration in Paris or Berlin would be an improvement on the status quo.

The most convincing piece of propaganda I've seen from the YES side is a sticker saying "Vote Yes and end Tory rule forever". There'll be a lot of folks the other side of the border wishing they had a way to sign up to that.