I frequently use EBC to get my computer parts. I recently purchased an external usb 5.25 case housing. Its nice. I mounted a 3.5 inch hard drive in it and I use it as a backup device. I am probably going to get another to use for an external DVD Writer I have.
Prices are less expensive if you pay cash. For some reason credit is abou 1-2% more expensive. The return policies are very frustrating so please be sure of what you are getting before you buy it. Alot of times they will cut you a check in a week and that is very frustrating.
If you know what you want and its the right part this is definitley the place to get your parts. If you are unsure you might want to find a place with a better return policy.