How many members of Parliament sit at the Parliament?

As of now (2010)

Conservative - 306

Labour - 258

Liberal Democrat - 57

Green - 1

SNP - 6

Alliance - 1

SDLP - 3

Plaid Cymru - 3

Democratic Unionist - 8

Sinn Fein - 5 (Abstentionist)

Independent - 2

Overall - 650