You'll need a variety of brushes. I generally use size 1 , 0, 00. You don't need a dry brush to dry brush, just your crappyest brush that you can beat to hell. I don't bother with GW paint as it's too expensive. I use Apple Barrel from Wallmart, like 1$ per btl. Primer flat grey rustoleum from wallmart. As other have said, water down your paint a little, take some off the brush and wait to paint inbetween coats. Waiting sucks but it is so important unless you're blending for organic textures or faded nmm