A season long loan would be a more attractive idea for me at the minute. It'll allow us to properly scout any potential keeper targets over the course of a full season.
I'd have no problems us signing him permanently, but I think he'd end up costing more than he's actually worth. Plus he'd need to him off those awful adverts.
To be honest though, after yesterday's game I wouldn't mind seeing Steklenberg in, at least up until deadline day to give him a chance to be no.1 for the season.