Don't accept. Afinigenov's hot streak earlier this season had an awful lot to do with the fact he was playing on a line with Ilya Kovalchuk. Now that Kovalchuk has gone to the Devils, you're not likely to see a whole lot of production from him.
Bouwmeester has been very disappointing all season -- it does appear like he's picking things up a bit over the last week or so, but then so has Whitney.
I say, overall, the deal would be a net loss for you.