GeneDesign's Vector Chooser module allows you to search and sort the vectors known to the program by a variety of criteria.
You can select vectors by size (kb), the number of absent sites, and the
presence or absence of specific restriction enzymes.
The next screen
will give you a copy-able sorted list of vectors that match your
criteria,
as well as an annotated list for your further edification.
This module is still under development. Any comments would be appreciated.