Morimoto H7's from TheRetrofitSource - not cheap - but high quality, great service, and 5 year warranty. You can also get them in 4700K - not as blue as most of the EBay kits.
1. CANBUS compliant.
2. Shielded leads.
3. High quality bulbs.

$150 a set.

1. remove your headlight units to install ( you'll thank yourself later when you don't lose a spring clip into the housing).
2. with units removed, you can mount the ballasts on the flat surface under the units ( out of sight ).
3. use a small socket on the snap on cover as a template for cutting out a small hole that the grommet from the kit will fit tightly into.