Upgrading help

[yoeleli]

I'm planning on upgrading computer, and i hope you could help me.
(upgrade needed for gaming)
I Thought upgrading only the GPU and maybe the case should be enough but i'm not sure.

Heres my computer build:
OS - Win7 32bit
Motherboard - Gigabyte GA-M55plus-S3G v2
CPU - DualCore AMD Athlon 64 X2, 2400 MHz 4600+ (socket AM2)
Ram - 4GB (DDR2, i have no idea what's the clock)
GPU - ATI Radeon HD 4670 (RV730)
Case - some generic case i got when i bought this computer. (with a plastic air tunnel for the CPU)
Power supply - http://desmond.imageshack.us/Himg714...jpg&res=medium

So what i'm actually asking is if theres really a reason to upgrade and keep this computer or should i buy a new computer in a year or two..

Thanks in advance, Yoel.
(sorry if there's english mistakes)

[Indigo]

You're better off building new. By the time you swap out the components in the system, you'll have built a new one anyway, and that power supply won't handle anything above what it is doing right now. (Boxter is some generic brand if memory serves...)

You're also going to want to get off of 32 bit Windows and up to 64 bit, a minimum of 4GB of RAM (8GB is cheeeeeeeap) and so forth.

The CPU socket is also too far out of date to get any benefit from upgrading.

You can build new and keep it cheap, but this system won't make a good upgrade platform at all.