There was a PDF of the 2012 MOT check listed as issued by VOSA somewhere on here, but Google 'MOT check list' and tons of stuff comes up. The Auto Trader website usually has a pre-MOT list on there which is handy.
Some age old advice is to clean your car before you go in. This gives the impression you care for your car and may mean they will let something through if its borderline. Just an old myth but worth doing!
One final point, send your car to a local council MOT centre, don't use a garage or main dealer. Every major town has a council run centre for government vehicles, but because they don't carry out repairs, they won't fail something borderline, they will just issue the advisory. Many, many internet articles about this, so also Google that.
Good luck!