Also, 4 Gifts is way too many. What happens when you draw 2 in your opening hand? I think 3 should be the max, probably best at 2.
Well, when you draw 2 of them, if the first one resolves, you should probably win the following turn. If they try to counter it, you can Pitch the extra to Force of Will, or let it go and play the second one. Having extra Gifts should never be a problem because you will always win the turn of, or the turn after it resolves. In a worst-case situation, you can also play 2 Gifts and stock up your graveyard if you don't have everything you need to win.
Saying I only need 2 or 3 seems completely random. You give no justification to this suggestion, so why would I do it? When Gifts wins the game for you after it resolves, with this deck, why wouldn't I play with 4? Long played with 4 burning wishes because Burning Wish = Yawgmoth's Will. Well, in this deck, Gifts Ungiven = Yawgmoth's Will.
There is no reason to include green
I agree -- the 5 Colour Mana base was only used because I was using Wheel of Fortune and other Draw 7s, but I decided that I don't really want to be using draw 7s because the card Gifts Ungiven is simply better. Not only does it definitely get you all of the tools you need to win, but it doesn't fill up your opponents hand in the process.
So, the Mana base should be changed, I agree.
I think the thing about posting a new deck and not having cred to my name is that it will really tricky to get quality discussion regarding this deck, so I will do my best to get actual results. If anyone else has comments, post away, but I will not post new advances on the deck until I have a tournament report to include with them.
Dan