For anyone that's interested, walterfootball just put up their scouting report of Sen'Derrick Marks. http://www.walterfootball.com/pro2009smarks.php.
I'd wait for the Peria Jerry one from the site to start forming an opinion. But from the sounds of it, he sounds more like the replacement for Foster than the run stopper we're looking for. And this isn't the first time I've read alot of what's in this report about him. As it stands, it sounsd like Raji actually is the one we're looking for. Not saying Marks wouldn't be awesome, but the more significant upgrade would be http://www.walterfootball.com/pro2009bjraji.php.
From everything I've read, Jerry is basically 65% Marks and 35% Raji. Which is perfect.
Anyway, there you go for people on the DT watch. Thought you might like it.