Two companies are developing turbo kits now. One is AAI (
www.acceleratedautosprts.com). They have a single turbo setup that should be finished any week now. Second is API (no website). They have both a twin a single turbo setup in thw works as well, but it may be some time before they actually get it going.
I have said and will always say that a DIY turbo kit is the way to go. Its easy to do so long as you have some knowledge of how cars and turbos work. If you dont, pick up "Maximum Boost" by Corky Bell. Its the best book in the world.
RIPPs kit is very reliable, and is backed by a good company. If you want a kit to bolt on and just have some fun with with minimal work and worries, thats the way to go.