getting ready build first amp, newbe questions

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I'm going to build amp project number three out of the "high power audio amplifer construction manual"

The auther does specify what size of resistors ( power rating) to use in the last stages, like 2W resistor here, 5W there. So should i just use 1/4 W when not specified or should i go with 1/2 W? And what do you guys use for resistors, just plane ol carbon resistors?
 
really metal film hu? and 1/4W will be fine?
Another question i thought of was, since this design in the book is just a power amp, can i place like a 10K pot on the input for volume controll, or do i need to implement a pre amp stage? I really wish i could scan the schematic in , but i don't have a scaner. BUT the input stage doesn't look like it needs a pre amp to dilver enough voltage the output transistors.
 
see i duno about the power output. In the project before he says 150W then in the project after he talkes about 200W, so i would guess somewhere in between.
And yes i have looked at the projects over there at ESP. They do look nice and since i have no real experiance as of yet.... perhapes i should try one of his designs first. At least with the preamp.
 
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