newbie question about case modding

[WdnUlik2no]

I just built a new PC using the XION case. It came with one fan on the side and one fan in the back.

The stock fans seem to be doing a very good job in keeping temps at an acceptable level, but I decided that I actually may need more fans to get even better air flow. I want an additional 80 mm fans on the side and maybe even one coming out of the top of the case. My question is what kind of tool to use in order to SAFETLY cut a hole in the clear plastic and also what to use to cut a hole in the top part of the case that is made with metal?

Finally is there any special drill bit that I should use to make screw holes?

 

[imported_Kensai]

You can use a dremel or just use a jigsaw. A hole saw is the easiest, but if you're cutting through steel, you'll need machining oil.

 

[Chode Messiah]

if ur new use a hole saw and oil or just cut the hole in the acrylic

 

[yokomo]

look at this man it might help if nothing else it has some good pictures.
http://guides.pimprig.com/modding/diy:_blowholes.php