Remember Kurt....
A "normal" Hummer wheel has 7.25" of backspacing, so you need to get some that are re-centered to something more conventional like 3.75" of BS.
If you search, I posted up some pics that compared the backspacing of the stock Hummer wheel against a conventional "wagon wheel"....the Hummer wheels will clear the front calipers in the way you want (diameter) but will end up hitting in ways you DON'T want due to the backspacing.....they hit the caliper body, the tie rod, the highsteer arms....it's ugly.
Out back, they work awesome and will "tuck" a 16" wide swamper almost 100% underneath the stock fenders....it's an insane look. Kind of like a lifted Blazer that's been mini-tubbed!
Something else to consider, is that if you go with the Staun/TireLoc solution in a 16.5" size....you can move them to a 17" wheel later on. At some point, the 16.5" tires will be phased-out, and the whole larger diameter wheel trend seems inevitable from a marketing perspective....the new 39" BFG Krawler radial will only come in a 17" from what I recall, so at some point the "sexy" tires will force most enthusiasts to at least a 17" wheel.
With any other beadlock solution, you'll have to re-buy wheels...with the Staun/TireLoc, you can swap them over....the extra 1/2" of diameter doesn't make any appreciable difference in their performance. (I got this statement directly from the manufacturer, BTW)
For the lazy:
http://coloradok5.com/forums/showthread.php?t=133919&highlight=Hummer