5fold to Accumulator to win:
Burnley
Nottingham Forest
Leicester
Southampton
Man Utd
With odds of around 17/1 this might well be worth a shot, especially as you can get your money back as a free bet with Betfair if only 4 selections win, see below.
http://ads.betfair.com/redirect.aspx?pid=1223065&bid=9329
I think the Southampton game will be tough, and cup games are always unpredictable as we all know, but those odds are very good for a 5fold where we only need 4 wins for our money back.