I have a 2005 Ram. Factory headlights were miserable, no matter what I tried, and I tried everything. If you read the headlight threads on the PW Forum and on DodgeTalk, you will find that nobody is/was satisfied with the factory lights. You can get a very modest improvement by using better capsules, such as the Philips Xtreme. Better, but still not good. Another minor improvement is to fit the factory foglights with Philips 9012 or 9011 Halogen InfraRed (HIR) capsules. The factory fogs were made by Hella and are actually pretty good lights, especially with the 9012 or 9011. 9012 will fit with no mods, but the 9011 can be made to fit with some minor trimming of the tabs and maybe a new O-ring. Makes a huge difference at moderate speeds on country roads. Availability of the HIRs can be spotty, but try Susquehanna Motor Sports or Candlepower.
When I had finally had enough of the factory headlights, I ordered a set of Morimoto HIDs fitted into a set of new factory headlight assemblies by Retro Shop. Most of the guys on the PW Forum and DodgeTalk seem to like the Retro Shop units, and I like mine. I think you can choose 35W or 55W, and can also choose your color temperature. For best results, stay under 5K (I think mine are 4300K). Depending on whose data you read, mid-day sunlight at the Equator is around 4300-4600K, so that's what's works best for human eyes. With the Morimotos, there is a motorized mirror that changes the beam from high to low, with a slight delay while the mirror moves into position. It does not change the output of the lamp, but changes the pattern. Good cutoff, not much stray light, decent shoulder coverage on low beam. But, they are not cheap. I think I paid about $500 a few years ago. Worth it.
The other thing I would recommend once you get the new headlight assemblies with fresh lenses would be to go to your local tint shop and have them apply a clear film to the outside of the lenses (just like the Porsche guys do). The film will give the plastic lens some UV protection and will protect against abrasion on the road. You may have to replace the film every few years, but it's a lot cheaper than new headlight assemblies. The shop I used has a lifetime warranty on the headlight film, and I'm getting my film redone later this spring.
If you go to the the CandlePower forum, they will probably rip the idea of retrofitting the truck with HIDs. That's because they don't have to drive with the crappy factory Dodge headlights. You gotta do what you gotta do.