paving a driveway

well, I've got some pavers for our driveway (planning to do a nice semicircle driveway on what is now turning into a mudbath (thanks to the water restrictions).

Anyway, I've looked over a few websites, and know pretty much what to do for the paving. However, I'm thinking I might pull the concrete path up from around the house too, and do that at the same time.....

Is this going to cause any problems? is the concrete there for a reason (ie should it be concrete, not pavers?)
Also, does anyone know if I need to get the termite treatment re-done if I pull up this concrete?

thanks