Thinking of building a gaming pc

1. What is your budget? 800-1000

2. What will be the main purpose of the computer? Gaming (most newish games on medium/high settings. Shooters and football manager) video editing and maybe some animation if I decide to learn

3. Do you need a copy of Windows? Yes

4. Can you use any parts from an old computer? No

5. Do you need a monitor? No

5a. If yes, what size do you need. [19'/20'/22'/24'/etc.]

5b. If no, what resolution is your current monitor and do you plan to upgrade in the near future? I am going to use my TV now. Can't remember specs offhand but will likely upgrade later

6. Do you need any of these peripherals? I have a mouse and keyboard around here somewhere

7. Are you willing to try overclocking? No

8. How can you pay? Paypal

9. When are you purchasing? Within the next few weeks

10. If you need help building it, where are you based? Cork

Any help/ideas would be appreciated. I am completely new to this stuff