The league can barely support 18, so no... tip: read my blog for the ins and outs on the Eredivisie, that's how you spell it btw.
I was very keen on Toivonen in the summer, but have very real doubts now. He could be the kind of player who wrecks a dressing room spirit in a divisive way. Like Rob and Robbie (and Ibrahimovich), I much prefer Elmander, who has a Holt-like ability to impose himself on games, contributing much to the team performance. I can't see that happening with Toivonen. Given that Van Ginkel has only had two substitute appearances for Chelsea, might there be a loan possible in January?