Electicial wholesalers usually have a good range and quality.
Have a look in the yellowpages.
I like something that is easy to clean (more likely to be cleaned), I have those oyster fluro things in my PPOR and they are always full of bugs.
Middendorps...Middys they are known as in some areas.
Its an electrical wholesalers that sells to the public. I get my lights, electrical switches, external lights, etc from them and they are reasonable price.