Great guide. I merchant to make most of my money as well, and I've found that merchanting rune weapons, especially the rune scimmy, is useful for players with 100-200k. Just stand near the door to east fally bank in world 2 and say buying all rune weps (you'll get a lot of offers). Then go to world 1 and sell for 15-20k more. When you get up to 500k, start merchanting d meds. Buy for 500k or less (i know the prices have dropped recently), and sell for around 550k in world 6 or 9 fally (or forums) for a 50k profit. Other items I've found useful for merchanting: zammy plates, whips, d legs.