Some answers came out from a recent careers adviser meeting with four major companies:
SAP / ERP technologies, methodologies such as Agile, languages such as .NET and C#. If you can demonstrate a good grasp of a language like Java you can probably pick up other languages quite easily.
Communication, influencing and the ability to self-market seem to be as important as numerical and technical skills.
A bit of a split – about half of the companies recruiting stipulate a 2.1 Not very positive about PhD students but a masters in some sort of IT conversion course can be good if students demonstrate passion for IT.