I haven't owned a computer since last summer and my tablet just isn't cutting it anymore.

It took me a year but i finally saved $800 for building my own rig. I've never built my own computer before and haven't owned a desktop since 2007 (laptops are nice) so I'm going into this nearly blind atm.

What are some parts, brands, products you guys recommend? Also what are some to stay away from. The only thing I'm sold on right now is the fact I want a mechanical keyboard (razor black widow?) all else is in the air.

I'd appreciate any help i can get.