Beginner Overclocker needs: PSU advice and OCing help

[noulis]

My Build is :
CASE: Thermaltake Commander MS-I
MOBO: Gigabyte GA-Z77X-D3H
CPU: Intel i5 - 3570K
GPU: Asus GeForce GTX660 2GB DirectCU II
COOLER: CoolerMaster Hyper 212 EVO
RAM: Corsair Vengeance Low Profile 4GB Dual Channel

My current PSU is a total crap from 650 Watt Raptoxx and i am going to buy a new one before i start OCing for obvious reasons my budget(=60-70 ). How many Watts should i look for and suggest my some if possible (i know XFX , Seasonic, and Corsair are the best)

First of all i would like a Guide for Beginner Overclocking to get me through the basics and achieve a sturdy and safe 4 GHz OC which i have heard is in limits for a Long Lifetime for a CPU (is that True??) and second a guide to overclock RAM and GPU again in reasonable and safe limits for Long Lifetime...
One last probable stupid question (you can ignore it ) i have heard about OC profiles ... can i OC when i am gaming and when i am not, to run in normal speeds without much trouble??

 

[schmuckley]

1st: PSU..need good PSU to overclock.
look for single-rail PSUs http://www.overclock.net/t/183810/faq-recommended-power-supplies
I'd say 600-850 would be fine for you.
The Sin0822 overclocking guide: (for giga) http://www.overclock.net/t/1247413/ivy-bridge-overclocking-guide-with-ln2-guide-at-the-end/0_100
I always know it's gonna be fun times when I see "M.I.T" in the BIOS lol

 

[noulis]

1st: PSU..need good PSU to overclock.
look for single-rail PSUs http://www.overclock.net/t/183810/faq-recommended-power-supplies
I'd say 600-850 would be fine for you.
The Sin0822 overclocking guide: (for giga) http://www.overclock.net/t/1247413/ivy-bridge-overclocking-guide-with-ln2-guide-at-the-end/0_100
I always know it's gonna be fun times when I see "M.I.T" in the BIOS lol

Thanks for your help i found this PSU: http:// and it costs 80 Euros which is the max i can spend ... What do you think??

 

[schmuckley]

not bad!