I think it's probable that UKIP won't do as well here as in England. Not because we're more in favour of the EU - opinion polls show Scots to be more eurosceptic than folk down south.
Labour is in trouble with its core vote because of the Iraq war. The LibDems are in coalition with Labour here and therefore seen to be less distinct than in England. The Nationalists are going trough a bad patch with a considerable amount of infighting. And the Tories - well they seem to be doing quite well and there was even speculation in the press recently that they may come top in Scotland! Their supporters may well decide that such an unusual opportunity is not to be missed and I therefore expect there to be less of a switch to the UKIP than elsewhere. But we shall find out on Monday.