Leighton Baines to Manchester United?

Leighton Baines, debatably the best left back in the Premier League, has just been linked with a move to Manchester United. Even more surprising, his fee is set around 5 million, which is a STEAL for someone with such high quality and experience. With United looking to add more players into their rotation, and captain Patrice Evra getting old, and Fabio going out on loan this season, is Leighton Baines exactly what United needs? Should he come to United? Could Fabio go to Everton on loan as part of the deal (he gets first team football, United gets a quality Left back)?