Durons are very good budget processors and most motherboards supporting a Duron also support Athlons so you could get a board that supports both and a Duron until you can afford an athlon. Oh and Duron being faded out so be quick

Mhz speed doenst actually judge a processor by its speed, the athlon XP 1800 actually runs at 1.5ghz but in contrast to the pentium it is effectively equel to the 1.8ghz Pentium processor. GO AMD


Other system specs need to be looked at like ram in order to get the full effect from your processor anyway so processor isnt everything. (it just wont work without one )