Should I accept this trade?

Wait until Wednesday to find out where VJax goes. If he goes anywhere but Washington, make the deal. Santana Moss is getting a ton of targets in DC, and Mike Wallace won't get you anything until Big Ben is back; and even then, there may be some rust. Ronnie Brown is an every week start, and DMac is getting the most carries in Oakland. Brandon Jackson is nice, but not nearly as valuable as what's on your bench. You may want to pick up Tony Moeaki, if nobody in your league has grabbed him. Gives you more depth at TE, and he's the #1 receiving option in KC right now.