I wouldn't recommend 8000K for color, but if you want that's your choice. Definitely retrofit your headlights with projectors, or buy the ebay ones (quality might suck from ebay).
DDM Tuning is ok... i have a kit on my car that has lasted 3 years without a single issue. I had a second DDM kit on my fogs which failed after 4 months and they wouldn't honor the warranty... so hit and miss i would say. I sent it (ballast) back to them telling them it was intermittent --- when the ballast would get warmed up it would fail... they told me there was nothing wrong with it.. i get it back hook it up and sure enough it starts doing the same thing again.. I wouldn't go with their products, but again that's my experience.
www.theretrofitsource.com is a great place to get retro kits, hid kits...etc... i have moved my DDM kit to my fogs, and upgraded to a morimoto kit for my low beams and it's flawless. Great customer service as well.