Ah, ok. Well, your problem is a complete lack of depth so I wouldn't go trying to find a marquee signing just for the sake of spending some money. I'm on a Liverpool game myself, and it only takes 3 or 4 injuries to completely deplete the squad.
Entirely up to you of course, but faced with the same situation I would get the scouts out and try to find some good youngsters, not necessarily for this window, but with a view to signing in January.