Need help overclocking to 3.0 GHz

[Tikli]

Following are my system specs:
Intel Core 2 Duo E7200 @ 2.53 GHz
2.75GB RAM
Mobo: Gigabyte 945GCM-S2L
Nvidia Geforce G210 1GB graphics card
250GB HDD
Stock Intel cooler

I wish to overclock my cpu to 3.0 GHz to increase performance. Will i require a cooler for this? If yes, then please suggest

 

[amuffin]

Cooler Master Hyper 212 EVO.

 

[inzone]

The stock cooler is really only good for stock settings and when you overclock you have to get rid of more heat so a better heatsink/fan is needed.

COOLER MASTER Hyper 212 Plus RR-B10-212P-G1 "Heatpipe Direct Contact" Long Life Sleeve 120mm CPU Cooler Compatible Intel Core i5 & Intel Core i7
$29.99
http://www.newegg.com/Product/Product.aspx?Item=N82E16835103065

COOLER MASTER Hyper 212 EVO RR-212E-20PK-R2 Continuous Direct Contact 120mm Sleeve CPU Cooler Compatible with latest Intel 2011/1366/1155 and AMD FM1/AM3+
$30.99
http://www.newegg.com/Product/Product.aspx?Item=N82E16835103099

Enermax ETS-T40 T.B.SILENCE CPU Cooler With PWM Twister Bearing Fan Compatible with latest Intel 2011/1366/1155 and AMD FM1/AM3+
$34.99
http://www.newegg.com/Product/Product.aspx?Item=N82E16835214023

Enermax ETS-T40 T.B.APOLLISH CPU Cooler(Side Flow) With PWM Twister Bearing Fan Compatible with latest Intel 2011/1366/1155 and AMD FM1/AM3+
$45.99
http://www.newegg.com/Product/Product.aspx?Item=N82E16835214024

Here are some for you to look at and consider.