I've already named numerous (Attacking) midfielders so take a look up for that. Left back you could try and get Danny Rose from Spurs, or Kyle Naughton (loan/buy) Dodo from Corinthians I think is a relatively cheap wonderkid. Can't think of any top-name strikers for cheap only young lads who need time to develop, there's a thread raving about Quintero, could try and get him. I'd try for loan options though, players like Sturridge, Welbeck, even Owen could be possibilities.