Good to hear from you again Jim ... the 2011 season is about to start albiet delayed by a further two weeks!
On the issue you raise, we are about to witness an new era in F1 with plenty of overtaking (at least that's the theory), the overtaking "apparently" will be so much that we won't like it! At least that is according to a few of the drivers who are complaining about the changes.
It appears that the single most important factor this year that will show us plenty of overtaking are the Pirelli tyres, they go off so quickly that the difference in lap time between a worn tyre and a new one could be as high as 6 seconds.
There is also the adjustable rear wing and KERS, both of which should help in the overtaking but the driver is having to manage too many things at the time of attempting to overtake so we'll be seeing lots of mistakes as well!
Will this mean exciting duels ? We'll have to wait and see.
Also you may want to check out Mike N's article on
Pre Season Testing, it is worth a read.