If it's dodgy politicians you are worried about, and you want to make a protest vote against all the main parties, UKIP may be not the best place to put your vote. UKIP does not have a very good record on that score.

Last time in 2004, 12 UKIP candidates were elected to the European Parliament. One of them, Ashley Mote, was sent to prison in 2007 for benefit fraud. Another, Tom Wise, is currently on bail facing charges of alleged expenses fraud and money laundering.

Of course there are worse among the 342 registered political parties in Great Britain as of May 14 2009 ( and another 51 in Northern Ireland (see here for a Wikipedia list), most especially the BNP. But there are better as well.