Current Cameras:
----
Prosilica GC750

752 x 480, CMOS, Mono

http://www.prosilica.com/products/gc750.html

----
Prosilica GC650

659x493, CCD, Mono

http://www.prosilica.com/products/gc650.html

----
Other Cameras Options

Web page with a bunch of GigE camera vendors (not all support Linux): http://www.pleora.com/camera_partners/index.php