Well I hope to be buying a used dm4 soon. It'll be my first highend gun and I have a few beginner questions about it. Any size tanks recomended? And I see like low pressure tanks and high pressure tanks, I would be buying a low pressure correct? Any tanks that you guys like the most? I know Crossfire makes nice tanks but..

I also plan on getting a halo which most of you would probably agree with..
Well if you guys could answer some of these questions that'd be great.