There are 14 seats for Manitoba members of the House of Commons. Upon the resignation of Ms. Judy Wasylicia-Leis (of the New Democratic Party of Canada), one seat is vacant for which a by-election...
There are 308 members of the House of Commons of Canada. Members of the House of Commons are styled Members of Parliament (and are entitled to use the post-nominals "MP").
I think it is a fair bet there are a lot more now than there will be after the next General Election in UK: Currently (May 2009) there are 350 Labour MPs.