well i got it and it done the job for a 120mm fan cut out but it did take some time but il probly get a dremel for doing bigger cutouts and im new to all this modding stuff so i wanted to go cheap but thanks for the help everyone

Anything is fine as long as its Sharp and you have a steady hand.

well it did cut his case after about half hour with both off us taking it in turns but i used a pair of sicser (for making the holes) and a swiss army knife with a saw on it then i used a nail file and sand paper to sand it down then a lot of time still sanding every now and then just to neaten it up a bit more