"1. Add 2 if not more types of default currency and make the standard currency silver."
Read the article. Not only did you take cheap shots at the opposition, but you also left unaddressed their points: mainly, that in D&D, copper and silver stop having any meaning very early. So, why bother?
I want decimals.
"2. Reagents with a fairly high cost should be needed for spells."
Sure, as long as the significantly more common combat in RPGs is taken into consideration.
"3. Better by the book weight needs to be addressed."
Oh, you silly RPG elitists -- can't even get your analogies right!
"Sometimes [snip] I thought I was playing Diablo rather then a D&D based game when I looked at my inventory."
You felt you were constantly running out of inventory space and left lots of expensive loot behind in order to conserve time? Never happened to me in NWN.
"Fair enough, but can