There's no way you can achieve mirror like finish with a spray-paint (spray-can) chrome just so u know. The most you will get is a shiny silver.

I have personally tried 6 different brands (3 of them are international brands, not available in Malaysia, brought off the internet) that claim mirror-like chrome finishes.. All turn out to be BS.

Ironically the closest to a chrome finish i got was with a Malaysian made spray paint brand called "Arrow". Way better than the so called international brand. Go to any hardware store and look it, it's quite common.

P/S: If you still want to chrome your case for real, there's an SMI outlet in PJS11 next to Sunway Lagoon/Pyramid. They do chroming work for car parts. Not sure how much it'll cost though.

Cheers