If I was going to go the pellet route, I was going to go with either a YS640 or a Lone Star Grillz
Product Details: 100% MADE IN USA including the pellet feeder hopper and the PID controller PID Controller is designed by FireBoard Labs giving you the ultimate in temperature control and unrivaled plotting and logging capabilities. You have the ability to add notes and pictures with each cook...
lonestargrillz.com
I like that both use the Fireboard controllers, which is a company out of KC and considered the gold standard. Cheaper smokers use Chinese controllers, which are not the gold standard.
If I was going to get a YS640, I'd have to get the competition cart. If I got the Lone Star, I'd get the bigger wheels. One thing nice about the YS640 is that you can get one at Scheels.