Congrats on the new purchase Danny and welcome to the forum ... nothing like a shiny hew hoe!
To answer your question on wheel size ... Having had both 22s and 24s on the least difference in ride quality was on the highway. City driving is where I could feel the stiffer ride.
A couple of other things to consider on 24s is the additional strain they put on the brake and power steering systems ... not a huge deal but noticeable nonetheless.
The stormtrooper look is definitely eye catching ... although it is always more effective with white rims. My observation is that black rims with the black tires against the black wheel wells on a white truck kind of get lost visually ... in essence what one sees is one big black area and the wheels themselves don't stand out.
Cheers!
---------- Post added at 02:49 PM ---------- Previous post was at 02:43 PM ----------
This is a nice one:
http://www.tahoeyukonforum.com/forum/showthread.php?p=292154