excellent idea!!! you are making a good choice and will have a far better knowledge and depth than those who leap over. good for you. there are several textbooks for level 2 my personal favourite is the cache one
http://www.amazon.co.uk/gp/product/1...SIN=1444135465
you also need a good grasp of development and this is the best cd book around
http://www.amazon.co.uk/gp/product/1...SIN=1444102842
but if you are short on development knowledge you need to get that first so a basic child development book like the meggit one is excellent you should invest in it!
http://www.amazon.co.uk/gp/product/0...SIN=0435078801
download the EYFS and read it through and READ READ READ it is the only way to learn. read papers on the web like the guardian and the times looking for education and society issues.
many people seem to think that having the certificate makes them a practitioner. it doesn't in any way! building up your knowledge will make you an asset to a setting and most importantly the children good luck!