Good gaming + editing machine

I need help building a PC that won't be outdated in 3+ years...

I want to be able to edit videos 1080p sony vegas and play most new games at good resolution. 

 

I decided the only consoles i am buying are the nintendo ones, so wii u will be purchased and all other games i want to play on the computer like the last of us etc..

 

I pretty much want an all around good computer that can edit well and play games very good.

 

Can anyone recommend some good parts? 

https://teksyndicate.com/forum/build-pc/read-you-post-general-guidelines-build-pc/140909

Main things I need:

BUDGET

PERIPHERALS/ANYTHING NON-TOWER-HARDWARE RELATED

COUNTRY

WOOPS soorrry haha

 

i guess my budget is around $1000-1500ish? is that a good budget? I'm probably going to be buying these parts over time too so like what would be the best parts to buy first

I have a mouse, monitor and keyboard and Win7

USA