...Most everyone on this board was a arcade buff 1st, non-woodworker 2nd.
Actually, I think the non-woodworker part would technically be first. Kinda like saying "I'm a bilingual illiterate". You can't be a "non" something second, as you were BORN with "non" skills

For instance, as of this very moment, I am a non-airplane pilot, and do not have plans to become a "non non" one anytime soon. I also am a non-Indy car driver, a non-astronaut, non-nuclear physicist, et al.
To answer your question about how to work with wood stuff, every woodworking site will offer "general" knowledge info. Click the links I've given to see some basic stuff.
Wood MagazineWoodworker's JournalWoodworking.comFine WoodworkingThe ULTIMATE reference libraryIf you can't get anything out of those sites, then you may wish to re-think your desire to build your own cabinet, but I think you'll find what you are looking for. I personally subscribe to two of those magazines, and if they can help a dolt like me, you should find gold there.

As far as making an "easily disassembled cabinet", either go the two piece cabinet route, the showcase cabinet route, bartop cabinet route, or the mini-cabinet route. All those options will be in some thread here, with varying degrees of discussion on the merits/techniques of each.
Around this site are numerous and varied cabinet building threads, so try a few phrases to narrow down your search for help/ideas.
If you aren't familiar with a power tool,
DON'T even put the plug/battery in the thing. Read the friggen manual. Use the proper safety equipment, and lastly, wherever you're doing the work, make sure you have a clear view of anyone coming towards you. I had a guy lose a finger two days ago at home because his wife tapped him on the shoulder to get his attention while he was sawing something. Long story short, if he was building a cab, he'd have to reach a little longer to press ANY button on it. Don't be a "dood" and guess your way through how a tool works.