Ive alway's had a problem with punctuation. No longer though. Please consider yourself nominated and seconded as HA site commerist and tidy it all up. :)

Hopefully this will be taken as constructive criticism - I couldn't hope to write anything as erudite myself!

One spelling error jumped out at me: perameter s/b parameter.

I didn't notice this in Nigel's text, but while we're on the subject of common mistakes:

there's = there is
their's = belonging to them

It's surprising how often these are misused too.