I just went through this and am the person who mentioned it to autumnprairie.
CL - I think you should test everyone for CL, my opinion. Based on my understanding if someone has CL, it can be spread to everyone if they have a abcess that opens up and it can get in the ground and spread to new goats that you may get. Not saying you have to get rid of a goat that tests positive for CL, but at least you know what you are dealing with and now to take preventative measures.
CAE - Based on my understanding is a personal preference. If you want to breed and let the mother raise the babies, than I think you should definitely test for CAE as it is passed from mother to baby through their milk. If you do breed a CAE positive doe, you should take the babies ASAP and bottle raise them. You can use the mothers milk, but it must be pasturized first.
I tested my crew. My Boar / Nubian cross is CL Negative and CAE positive. She will live out her years here but I will not breed her, becasue of my work schedule, it is most unlikely that I will not be here when she gives birth.
Nina - My Nubian tested negative for CL and negative for CAE. She is currently bred and due in Aparil. You can see her progress, etc here
http://www.backyardherds.com/forum/viewtopic.php?id=14693
It really is not that hard t do it yourself and it saves a lot of money. My Vet did the original tests, but I wanted to test Nina for pregnancy and did it myself.
I purchased form BIOTracking their Goat Starter kit. It has 13 needles and 11 tubes, a needle holder and instructions for $15.50
http://www.biotracking.com/?q=store/bgoatstr
I drew Nina's and shipped it off to BioTracking. The Pregnancy test was $6.50. For an Extra CAE it is $4 and for $10 more, they will forward your Sample on for CL testing. Shipping was $9
So the cost of one vile / Needle was $1.41
Cost to ship and have test completed was $15.50
Total Cost for Pregnancy Test was $16.91.