I choose no.2.. still learning the ropes from all the pros here.. need time and trial and error for experiences. "Trial and Error" is your friend and worst enemy when you're not careful.. but can learn so much from it..
like how to ensure you have the right tools for the mod you're involved with and how to avoid these horrors..

[attachmentid=572351]     
Like when using a hole cutter to make a blowhole, please make sure you have a good block of wood on the other side you're drilling on (Thanks for the comment mfcm), to prevent the drill bit from moving around while you're cutting, and a real sharp hole cutter to ensure it REALLY (REALLY) CAN cut through the case..

[attachmentid=572352][attachmentid=572353]     
and not forgetting the worse case modding tool usage by ME on my angel case, where I learned about how to NEVER (NEVER NEVER EVER) cut a fan hole with a GRINDER on a real tight spaced area of the case (Thanks to Gary and niclasteoh for the items that will help me cover my mistakes up)..

@uglyvamp
Bro, how can no.2?? hehehe... your mods really blow me away man...  respect..