Teams wise, I can see Chelsea and United (panic) buying a few players. I would say Spurs, but I think Sherwood will look more to bring players into the fold (Ade) and look to youth (bentekebab etc) than buy big which a bigger name manager would have.
Moyes I can see panic buying, and potentially going for big names over positional needs. Cabaye and Khedira are the ones I would plump for, but United don;t need either and both of them aren't good enough.
Chelsea I can see them bringing in a forward, don't ask me who is available.
Wildcard, but I am predicting a combination of a new manager + Vincent Tan could lead to some explosive and hilarious deals being done in South Wales. Robbie Keane for 5m type stuff. Tan knows sod all squared, so he will leaf through his 2006/7 sticker book and buy people from there.