Stop and oil light - pressure switch?

[FlameR]

My stop light and oil light keeps coming on and staying on now.
Someone mentioned it could be the oil pressure switch. any ideas how easy it is to change, or roughly how much to get a local garage to change it?

 

[FlameR]

bump

 

[raziel]

Dude, I had the exact same problem. New switch 50 euro, fitted it myself, easy.