dimension 4600
2.8 ghz pentium 4
250g hd
2 gb ram
optiplex gx 400
40 gb hd
512 mb ram
1.7 ghz pentium 4
i don't know much about computers but someone told me that the optiplex was good. but im getting either one for 150 and they both work and have windows xp pro sp2. the obvious choice to me is the dimension, its hardly used it looks like. but like i said someone said the optiplex was good? i don't know.