Help with Samsung LCD's

[Kirton]

Can anyone tell me what the difference between the Samsung LE40M87BDX and LE40N87BDX is? and which is the best?

While we are on... what is the best 40-42" LCD on the market atm under £800?

 

[sonic]

check here, http://www.nextag.co.uk/42-inch-lcd-tv/zzukzB1z0--search-html