good start ASM ..
an about th prep an stuff its misc..
as of now london assessments are to be done in feb..we will get a more clear idea after that about th assessments..
from my opinion you should get hold of few thins like..
a sony psp
a nice book on world geography
an the most important..keep all your senses open for any kind of info related to aviation and try an acquire more of it..
the rest is the state of th mind and th attitude that counts..
so keep goin..cheers..