I guess it depends on prices really. I guess there isn't much chance of those quad core parts (Phenom X4 2300 2.3 Agena 120 AM2/AM2+ 65nm SOI 4X(64+64) 4X512 2048 August 07) being £200 or less :-/
I don't want to spend more than around £800 on the parts if I can help it. My concern about the K10 system would be that I could end up waiting a long time... Chip release August - then wait for chipsets - then wait for price drops...
My current system as you can see in my sig is, majorly old, i'm very eager to replace it.
Do we have any idea what the performance difference between one of those x2 parts and a conroe will be?