CPU Cooler?

[Nameless_87]

Hi,

I am building a new rig:

core i7 920 D0 @ 2.66
Gigabyte UD5
6gb Corsair Dominator RAM
Radeon HD 5870
Corsair HX 850W PSU
Antec 1200 case

I WON'T overclock until next year (want to run it as stock for a while)...
Next year I will probably overclock it to 3.8/4 ghz

Got a couple of questions:

1) Do I need a CPU cooler?
2) What CPU cooler do you recommend?
3) What is the TRUE cpu cooler I hear a lot about?

Thanks

 

[Nameless_87]

Some other questions:

1) Since I'm not planning to overclock now... do I buy the cooler now or later?
2) My choice was originally the corsair H50 but I heard some people having trouble fitting it in the Antec 1200 without modding the case
3) Which is the best one between TRUE and Megahalems?

Thanks

 

[Nameless_87]

Just a question...

If I buy a Megahlems or TRUE do I need to buy an extra fan as well?