You can get the bulbs all from ylvania or got to a local auto parts store
the part numbers:
DRLs: 3157
High:9005
Lows:9006
changing the DRL's is easy. Get on your back and twist the plug socket counterclock and install new bulbs.
High/Low: remove marker light assembly by pressing tab on the fender side of housing in. Pull to remove the housing. Turn and lift out two bars holding lower lighting assembly. Pull to remove assembly. Turn plug sockets counterclock to acess bulbs and replace. Revese steps to reinstall everything
Enjoy
Bonedog
PS Sylvania has a website and you can order all your bulbs threw them. I have the marker lights, High Beams Low Beams fog lights and DRLs all with Silverstar Bulbs.