All the big teams are going for this, with their "A" teams. Sky especially are rolling out Wiggins and co for this. I did wonder why he hadn't defended his Paris-Nice crown, but thinking about it maybe he is going for a win in the other big tours (this, Giro and Vuelta).
Starts next Monday, I shall be glued to it as it passes through some bit me and Ham are visiting in a few weeks (snow permitting)
Route details here:
http://www.voltacatalunya.cat/ca/etapes/Click on the individual stages to get details, you might want to put it through Google translate though
ETA: If you click on the Etapa Detallada at the bottom of each stage you get a route sheet, along with approx times (last three columns) for when they will get there at different averages