Forgot to say the normal non screen wacoms although a little easier than mouse unless you have used for years hard to get to grips a great tutorial that helped me out no end was:
Its a full tutorial on how to use various s and the advantages, I have spent a lot on training dvds and this is by far the best.
I have them and can rapidgator, letitbit them
The Cintiq's are amazing and you can pick up the w12 for around £400 gbp however hold tight you may have noticed even retailers price dropping slightly that's because new version is coming out and they want to clear the old stock, benefit is when new comes out value drops usability remains.
A cheaper option get an X61T from Lenovo its got a wacom built in so makes a cheap cintiq and works just as well as the cintiq as it still has multipressure.
Hope my rant is helpful sorry to go on but ive wasted soo much my on these and would hate for others to make my mistakes.