Overclocking Tips Needed

Hello everyone! i recently decided to upgrade my system but after i looked in my wallet i decided to "crack the whip" on my pc and make it work faster.
So this is my system, any advice on how much should i push my system are welcome!

Cooling
Case: Thermaltake V3 BlacX Edition http://uk.thermaltake.com/products-model.aspx?id=C_00001820

Case Fans: XILENCE Transparent Blue Led 120mm x4(top, bot, front, back) http://www.xilence.net/en/products/fans/fans/transparent-blue-led-120.html

RAM Fans: Kingston HyperX Fan http://www.kingston.com/us/memory/hyperx/fan/

CPU Fan: Coolermaster Hyper TX3 EVO http://www.coolermaster.com/product.php?product_id=6740

Motherboard
Gigabyte GA-EP43-DS3 http://www.gigabyte.com/products/product-page.aspx?pid=2846#ov

RAM
KVR800D2N5/2G x2 http://www.ec.kingston.com/ecom/configurator_new/PartsInfo.asp?ktcpartno=KVR800D2N6/2G

GPU
MSI R5750-PM3D1g http://www.msi.com/product/vga/R5750-PM2D1G.html

CPU
Intel® Core™2 Duo Processor E8400 http://ark.intel.com/products/33910

PSU
Cooler Master GX-Lite 600W(RS-600-ASAB) http://www.coolermaster.com/product.php?product_id=6789

Any advice is more than welcome

Hi, have you set the system up yet and run it all on stock to check everything works and is stable. I would suggest this before overclocking. Then, I think how far you push it depends on what you want to do and how much risk you are willing to take. I would overclock incrementally and check things as you go. When you reach a point that you are happy with in terms of performance then stop. But that is just me, I am sure others will have a different approach, all the bets

One of our members here wrote a guide to overclocking dual core LGA 775 cpu's like the one you have. You can read it here. Make sure you take the time to read it all. Then, when you have questions, come back. BUT READ FIRST.