Combining 10g tap ports

Hello, I'm wondering what are people's experience is with boxes, like those from Gigamon, to aggregate 10g span ports? Any recommendations? As background, we currently have a sensor network where we provide our InfoSec team with taps from various points in our network. In cases where we have redundant routers, we've taken a tap from each one, fed it into a switch, then span'ed the two ports into a third so that we can present them with a single feed for each location because, according to them, they can not re-assemble data from different interfaces on their sensors. We have an "opportunity" to revisit this design now that we're moving to 10g router interlinks. Eric :)