4x6 projectors for the top 2, and 4x6 non-projectors for the bottom hi-beams. Get a relay to wire in so that your low beams stay on when your hi beams are on, and you'll be set. I have the ebay projectors on my K10 and I don't have an issue with them blinding people, but I've adjusted them properly (which was harder on a lifted truck!). And yes, they are bright! I think I spent under $150 for everything.
http://www.ebay.com/itm/4X6-PROJECTO...1cc169&vxp=mtr
http://www.ebay.com/itm/4x6-8000K-Xe...edc370&vxp=mtr