What can I upgrade?

[Ice_Black]

My spec is kinda old but what can I upgrade my PC for better performance?

- I don't play games, I do some video encoding, photoshop, coding, and watching HD movies.

My budget is about £200 to £300

I just want better CPU and motherboard only. Use same other existing hardwares if possible

Current spec
AMD Phenom II X4 945 3-Ghz
4.0GB Dual-Channel DDR2
ATI Radeon HD 4670
128GB SSD - Samsung 830
1TB Samsung Hard Drive
CORSAIR HX 520W MODULAR PSU
Motherboard: ASUSTeK Computer INC. M3A78-T
Windows 8

 

[Ice_Black]

Thanks for suggestions but I want i7 and what about Asus motherboard? Is it better than Gigabyte for long term and reliable?

I don't mind if it gone over budget.

I have a Coolermaster Elite 335 case - that still work?

 

[Ice_Black]

Wait until Haswell is out in a couple of weeks. Don't buy into a dead socket.

Why is it worth to wait for haswell? How is it better than Ivybridge