Difference between 2002 and 2003

[Watarski]

I'm doing my research before buying a P5 and want to know the difference between the 2 years. I've also seen 2003.5 and don't know the significance of the half year model. It's turning out to be harder than I thought to find a P5 in good shape with the options I want. Patience I guess...
Thanks for the help-

[cilyjr]

this thread is already started...http://www.msprotege.com/forum/showthread.php?t=123637103