I'm glad the thread could help get you started.
I added to my snatch list the top gems, enchanting scrolls, glyphs that I found for all the classes on wowpopular. I've also got most leathers, ores, bars, simple gems, and herbs. Things that don't sell well or that you get flooded with, you can delete, or go really low on the snatch percentage (1 to 10 percent).
On a lot of items like shards, gems, and glyphs, I have auctioneer list stacks of 1, and tell it to post only 10 of them. For every item, you can customize the stack size and quantity. I batch post everything with price matching.
I know if I really analysed the market, there are a lot more opportunities out there. However, I'm happy with my current routine.
Edited, Sep 3rd 2010 9:05pm by dadanox