Wow, what a thread. I was reading this, hoping to find what the OP was looking for. I've used KC_Items with Fence, while I love it, I miss 2 features. The BottomScan option from Auctioneer and the display of what an item is used for (some grey items can be quite valuable to specific professions or classes). Now going over the thread I saw Mendeleev noted, and Tekkompare (I used to use EQCompare but left it for what it was in a desperate attempt to lower my memory usage, which now circles around 30MB).
Based on tips from others in the thread, I'll try the Auctioneer on AH Alt, hoping it will help. Or just /rl after I am done with the AH.
ps. I did get way more info on the term bigot than I did on the topic for which I checked this thread. Quite funny actually, how passionate people can be when defending their pov.