I hate to keep disagreeing with posters trying to help out, but now is not the time to trade Carmelo Anthony. There are 3 reasons why the timing is wrong here.
1- You just completed a big trade (hopefully), so it is a good idea to let the dust settle for a couple weeks and see where your team is. You strengths and weaknesses may change.
2- Melo is currently at a serious low point in terms of his value. He is playing through multiple injuries and playing poorly. He was a top 10 player and MVP candidate a week and a half ago and has since fallen to #40 in value for 9 category leagues because of his dismal play. If you trade him now, you get nowhere close to top dollar and would probably have to give up a player like Manu just to return a player who is really comparable to Melo under normal circumstances.
Understand that you gained in the Derrick Rose trade because his owner freaked out and sold at a low point. Don't make that mistake with Melo. You need to buy low and sell in fantasy trades.
3- The claim that Melo will kill your Fg% is a little misleading. Melo has killed your FG% for the past 2 weeks, but he is a career 45.7% shooter. That is not great by any stretch, but we aren't talking category killer either. Sure he is a gunner, but he is capable of generating enough easy buckets for himself to even out the percentages. When Melo gets healthy, the % will rise again. Be patient and resist the urge to dump him now.
If you decide in a couple weeks that you are still weak in points and want to dump them, then fine. I only urge you to see what you have first and make sure you sell high like you did with Jarrett Jack rather than selling low like you would do with Melo.
Also, you might want to grab Drew Gooden or Ilyasova for 1 of your fringe players. Andrew Bogut has a fractured ankle and will be out awhile, maybe to the whole season. Both these guys stand to see a boost. Hopefully you still have Tyrus Thomas after his ridiculous line last night.