I don't know. I've explained to him that Athlon may be his best bed. However he decide to stick with P3, since P4 will be out of date soon. He is an Intel believer, I think. Or, he might be conservative and scare to move away from a different architecture. Other thing is he also might need the SSE support for his video editing software (Media Studio Pro 6.0) which is optimized for SSE.