Experienced programmer required to develop code to scrape a website

I have been given your contact details by my colleague David Roberts Jones after you responded to the request for job 134859, which David posted on my behalf.

Basically I'm looking to scrape the UK Charity Commission website to download the 162,000 public domain records. I'm a charity fundraiser and I want to make this information more freely available, but the Charity Commission have just lost 40% of their annual budget and, whilst they don't mind me doing this (their exact words were 'we have no objection'), they are not going to be very helpful.

I'm looking to collect all 162,000 records, but am also looking for a piece of code so that I can collect all the new records that get added each month (around 300 new charities registering).

The charities are identified through their unique identifier, the Charity Commission Number, which for my own charity is 1011102. The number is sequential, so 1146997 will bring up the charity that registered earlier today.

The most straightforward place to start is the website:
http://www.charity-commission.gov.uk/

and if you put in 1146997 into the search box you get 'River Legacy', I'm looking to collect all the 'charity framework' information and all the 'charity contact' information for the monthly update, and all the information for the full down load.

What do you think? It has been tried before, by http://opencharities.org/ but they didn't get it to work very well.

I'm looking to turn this data into a database, so xml or csv would suit well.