My company is finally upgrading our cad system from Release 14 to LT2008 (16+ seats). What can we expect with the upgrade? I know we won't be able to use the lisp routines we have accummulated over the years, but is there anything major we should be aware of?

There are many limitations of LT in terms of customization, API, 3D, images, databases, rendering, fields, reporting and other advanced functions.