For lancets/gauges, you can use any brand. I use Walmart's ReliOn 26 lancets but any brand is fine. The higher the #, the thinner the lancet but the longer it will take to get blood when you are starting out. Poking doesn't hurt a cat at all. Cats have few nerve receptors in their ears and the more you poke, the easier it will be to draw blood because more capillaries are formed.
To transition CJ off dry food, I sprinkled Forti Flora on low carb food and she no longer misses kibble. Forti Flora is very appealing to cats, is also a good probiotic and often helps with diarrhea. You can find Forti Flora online at sites such as Amazon and
http://www.adwdiabetes.com.
Here is a primer on Vetsulin in our insulin forum:
http://www.felinediabetes.com/FDMB/threads/vetsulin-caninsulin-user-guide.302/
When you home test, you'll be able to see if Vetsulin is working or not for your cat. Not many cats do well on Vetsulin because it is shorter acting than longer lasting insulins like Lantus and ProZinc.
I was afraid of home testing but the day I learned how to do it, I learned CJ was hypo (blood glucose too low) and received excellent guidance from members here to get her #'s safely back up. Had I not been home testing, CJ would have ended up in the ER and I would have received a huge bill.
Here is a link to some good tips and videos to get you started on home testing:
http://www.felinediabetes.com/FDMB/threads/hometesting-links-and-tips.287/
Practice getting your cat used to touching her ears first, reward with praise and low carb treats (CJ just gets a lot of praises but you'll find what works for you and your cat) and know that this will get easier!
An additional tip: Put a very tiny dab of ointment such as Neosporin, Polysporin or Vaseline on your cat's ear with a q-tip after you warm up her ear. The ointment helps the blood bead up easier.