i'm sure that it's been asked before, but here goes again

i'm after some 6" speakers for the doors and rear shelf of my scooby. i've got some infinity reference metal cone ones in another car and think that they're quite good, but they are possibly a bit more than i want to spend on jap crap

can anyone recommend some that are good but reasonably priced? preferably metal coned for the door ones so that they are not affected by moisture

thanks