I want to build a good, fast system for myself. Till a few weeks ago, I was thinking about AthlonXP with A7N8X. But I'm a little worried about the future upgradability of the system. The Athlon doesn't seem to have a good upgrade path as compared to the P4. As recenly Intel announced the 875 and P4 seems to have a good upgrade path, what with 800 fsb and HT. So I've started leaning towards 875+P4. Its important that my system after 1.5 years still be upgradable to a faster processor (with the latest architecture) on the same mobo.