I'm buying a new computer soon, and I'm building my own configuration.
I want to choose a good proccessor this time.
So anybody who can tell me what he thinks is the best proccessor for a power user (Programming, Win2KPro, maybe personal server, etc...), please reply.
I have this list so far:

Intel PIII
Intel Celeron
AMD Duron
AMD Athlon
AMD Thunderbird
AMD K6-2

I'm not so good at the CPU field so thanks for any help.