You can either order HALOs and install them yourself, which I dont reccomend, because you gotta bake your headlights and get them opened which is a (B-word), or you can talk to Jason@flashtech in the link from Bill, and you can either send your housings in and they install HALOs, or you can buy a brand new pair with HALOs.
HIDs are just the bulb, no need for sending them out to get the bulbs installed, thats a relitively easy job