Thanks a bunch guys! you've helped me a lot! I must say, some of the comments frightened me a bit ;-) but, I understand, they are more exceptions than rule!
Sally, to answer your question, the programm I might be going for is epst's, (discussed already on pprune, I noticed) for more info: check out
http://www.epst.com
Dr Evil, I don't have an English accent, so may be there's still hope for me with the US instructors ;-)
one more thing: I haven't had much physics during my highschool years. (read no background I can count on!) would you consider this as a problem in groundschool?
thanks again! sounds like OAT is quite sollid!
Jaxx