cwbyhnd19,
I did the same search you are doing in Jan 09 and had to scour the country to find what I was looking for. I wanted an 06 or 07 Mega, 5. 9L, 6speed, Laramie, excellent condition, and a color I liked. I literally looked at every major craigslist.org site in the country, general Google searches and the For Sale sections on dodge truck forum sites like this one.
I kept this up for weeks until I found the truck in my sig right here on the TDR For Sale section. The ad hit the day before I saw it. I contacted the seller that minute, discuss the truck and the deal, and opened an account on Escrow.com and made a deposit. We then traded information and photos. I then flew to North Carolina to visually inspect the truck, accepted it, and drove it home to Denver.
During the time I was looking for an 06 Mega I found perhaps 6 or 7 around the country with 6 speed manuals. There were a few more with autos. Some were high mileage, some were already beat up looking farm trucks, and only a very few had the Laramie package.
Like some of the other posters have said, the 06 Mega's are holding their value better than other years and models.
You will find one, but I think you will need to be willing to search nationally and then travel to get it.
Good luck.