just a short note on ur NI contribution, once ur in the uk u will be contacted by the NI peeps summarising ur qualifying yrs, then they will ask u why u havent paid any contributions and inform u that u have a gap..in the letter it will say how much u have to pay for the gap period,up to you if u want to pay it or if u cn prove that u dont need to pay it coz u were outside the country or so. its up to you if you want to top up or not...the only downside of this is it will delay you recieving your pension in the near future...

good luck to your application...