[Edburg]

yes its better to buy E4300 - 1.8 GHz (200*9) instead of the E6300 -1.86 GHz (266*7) .

So for 667 MHz DDR2 Ram E4300 can go upto 333*9=3GHz or even higher as most 667 MHz Ram can go higher than their rated speed by loosening the timings.

For E6300 for the same Ram 333*7=2.33 GHz and higher.

But u'll loose virtualization technoilogy by going to E4300 but who needs that for a home PC.

And regarding the 320 MB,its enough for lower resolutions as u are getting 17 or 19" monitor only.But as u move to higher resolutions and AA and anisotropic filtering and more textures,you'll need more Graphic memory.