Advice & Suggestions on first build under $3k budget

[TBGAPowa]

-I have this question posted on multiple forums so bare with me here as my replies will be much slower.
-AS FOR THE PEOPLE recommending me WC I honestly feel intimidated by it. I chose an air cooling case but I still am not sure to choose a water cooling enabled one since I am not positive if I go WC in the future.
-I will order from mostly canadian sites but will order from other places if necessary. The preferred retailer list I posted isn't that vital.

UNAVAILABLE ON NEWEGG CANADA:

Monitor: Dell UltraSharp U2312HM
CPU HSF: Thermalright Silver Arrow SB-E
Headphones: Sennheiser PC 350 or 360
Tablet: Wacom Bamboo Splash

This is my first build from scratch my gaming orientation leans on rpgs, mmos, action-adventure and rts for the most part and less so for fps and racing games.

Approximate Purchase Date:
By the end of July
Budget Range:
Under $3k subtotal including everything base system, monitor, peripherals etc…
System Usage from Most to Least Important:
Extensive gaming and production/rendering in autodesk and other 3D/CG art software
Parts Not Required:
Not planning on getting a custom water cooling system just yet
Preferred Website(s) for Parts:
Newegg Canada
TigerDirect Canada
Canada Computers
NCIX
Country:
Canada
Parts Preferences:
Nvidia, visuals for the most part
Storage Space:
2TB minimum
Overclocking:
Likely
SLI or Crossfire:
Possibly SLI
Monitor Resolution:
1920x1080 or 2560x1440. I would like to have games on maxed settings, AA would be nice and what ever gaming technology optimization available
Additional Comments:
my newegg wishlist

anything sold out on the list i will look for else where, as long as they have good enough return policy

Really looking for some of the top and latest support with longevity, durability and silence

the rig would be placed in the basement which is usually around 20C, during the humid summer it should be closer to 30C room temp but we almost always AC then. the only thing about the basement i am worried about is if airflow wouldn't be good enough for the rig

would a heatsink fan suffice for now? if i ever choose to SLI would water cooling be needed then?