depending on your level, solo instances... SM is good for 150-250 i should think, with RFC/WC/Deadmines good for 1-150, all those three are fairly easy to solo at 40.
EDIT: Also, if your horde, and not high enough to solo instances, grind harpies for greens to D/E they drop cloth/greens/cash so all in all very good, and also, the vendorables make a fair bit too.
Edited, Feb 12th 2007 12:52pm by Royzy