Well thanks to this thread, I'm ordering a YS1500 tomorrow from Tom @ Yoder.
I've decided on:
YS1500 with a Silver Cart
2 x Probe Ports (one on each side of the chamber)
Direct Grilling Option (Grill Grates)
Modified Smoke Stack so that a portion can be removed to fit in my trailer
YS sign on the counter weight
400lbs of pellets
Looks like it will be a 4-6 week wait. Please keep up the posts and pics, it will help hold me over until I get this thing. Thanks for this thread, it was a huge help in deciding on my next toy, I mean cooker.