It is nothing to be scared of.

Like other posters said - it just means that it is a special way that the animals are killed. They are killed usually by cutting their throats as far as I can recall instead of being shot like other cows would be for regular consumption.

You can buy Halal meat at No Frills. It costs the same as other chicken/beef. No big deal and it tastes the same to me.

As far as dietary restrictions go - that one wouldn't bother me or stress me too much