Looking for recommendations for a build

Approximate Purchase Date: Within 4 months
Budget Range: Approx. $2500 to (hopefully) include shipping
 
System Usage from Most to Least Important: Gaming, programming, streaming gameplay and music, surfing the internet, movies, business, misc.

  Are you buying a monitor: Yes

   Parts to Upgrade: N/A- Build from scratch

  Do you need to buy OS: I am assuming so, but not sure.
 
Preferred Website(s) for Parts: I am seeking help from the community
 
Location: Jacksonville, NC, USA 

Parts Preferences: I am unsure, I am seeking help from the community
 
Overclocking: Maybe, I am seeking help from the community
 
SLI or Crossfire: I'm not sure what this is.
 
Your Monitor Resolution: N/A – Build from scratch
 
Additional Comments:
I will need speed and cooling! I think. I want to be able to run three performance sucking programs running at the same time in three different monitors and be the master of my programming/gaming/streaming music at the same time universe!
I am assuming I will need at least two terabytes of memory if not more by my current research ( I don't delete my save files and will be video editing).
I am assuming I will need space for upgrades in the future.
I would want decent to good graphics and sound- but probably wont instal any high end speakers. Monitors I'm open to higher end but don't need any movie-specific features such as 3D or Blue-ray.
Would love something flashy but performance comes first.
 
And Most Importantly, Why Are You Upgrading: My current PC was free and I've had a few promotions.