Go Supercharger, not turbos. Roush racing makes one, so does ford racing. I have seen where one of STS's remote turbo kits has been used, but its a custom fit universal type kit. Cool concept, turbo is actually mounted under the bed at the rear and plumbed back up to the intake. Small turbo though, 5-7 PSI I think.
Yeah, i have a really good friend that has an 06 trying to get a turbo setup for it. I have a Excursion Powerstroke and also a turbocharged Fox body Mustang. One of our buddies has a Procharged 05 F150 but my friend's trying to outdo him with a turbo setup.
If I was gonna go supercharger, i would definately consider the Roush. Instant boost, ease of install. The Procharger makes some big power but you gotta wind it up to make it.