Just to give a little insight into life in spain and the cost of living compared to most of europe,
I lived and worked there for 5 years and the take home pay was around 2500 per month, there is a lot to take into account to make that money go far believe me.
RENT.
2 months deposit and 1 months rent, (deposit is never returned) circa 800 per month for rental
BILLS
circa 150 per month elec plus 30-40 gas if installed.
CAR.
300 per month long term hire, or 1500 euro to buy a clapped out banger.
FUEL.
1.20 euro per litre, maybe 100-150 per month.
FOOD.
average 50-100 per week (depending on stomach size and supermarket)
So taking incidentals into account (private healthcare etc..) your monthly outgoings are circa 1800 - 2000 euros to live and work near the major airports (or even in a radius of 40km or so), Please check T&Cs carefully and make sure you do your research into the cost of living in that area, because it isnt all rosy..