I have been lapping/refreshing my norton 4k/8k with wet/dry sandpaper and a flat surface, but I am thinking I want a lapping plate/flattening stone. I was considering the Norton Flattening stone, but I keep reading that people are not too impressed with them (not flat from factory, and dishes very easily).... so I am thinking that a DMT 325 is the best way to go..Any thoughts?
Secondly, if the consensus is that a DMT is in fact better, where do you guys recommend picking one up at? Price being a HUGE fator, where can a poor man get the best bang for his buck?

Thanks.