OC Advice needed please

First off I would like to thank Tom's Hardware and the help I've received from the community with coming up with this build. I may not have followed the advice to the letter but it opened my eyes to a lot of things concerning PCs. You know people are starving while we're buying computers so we might as well make the best buys possible and help those in need as a testament to our satisfaction of getting someone great for a great price.

So with that being said I'd really like to know how far I can overclock this setup I have here. I knew before I bought it that the i5-3570K is known to heat up at 4.5GHz or higher but that a Ivy at 4.5GHz is equal to a Sandy at 4.9GHz.

What I'd like to know is how far I can overclock the rig SAFELY (especially the CPU and GPU) and how far would be going too far?

Here's my system:

[CPU]

• Intel Socket 1155 Ivy Bridge i5 3570K Quad Core 3.4GHz CPU

[CPU Cooler]

• Cooler Master V6 GT with 6 6mm Heatpipes

[MOBO]

• Asus Maximus V Gene Intel Z77 Chipset M-ATX

[GPU]

• Asus ENGTX560 Ti DCII/2DI/1GD5 1GB nVidia GeForce GTX 560 Ti GPU

[RAM]

• Corsair CML16GX3M4A1600C9 Vengeance Low Profile 16GB (4 x 4GB) 240-Pin DDR3 SDRAM DDR3 1600

[SSD]

• Corsair CSSD-F120GB3-BRKT 2.5" Force Series 3 120GB SATA6G SSD

[Cooling]

• 6x Cooler Master 120mm Blade Master Fan

[PSU]

• Corsair GS800 Gaming Series 800W PSU

[Chassis]

• Corsair CC-9011014-WW Carbide Series 300R No PSU ATX Black

[Display]

• LG D2342P-PN 23" 3D LED Full HD

Thanks in advance guys. You the best.