Guess I'll chime in...
I bought my Haro Mary from jdog in the beginning of september, first 29er, fourth ss. My first three ss were aluminum, front suspended 26ers. The steel, rigid 29er is buy far the most fun, comfortable, most trail friendly bike out of the four.
The larger wheels smooth out the trails, rolling over stuff that would normally create some jolts like on a 26er. The steel frame is an absolute joy to ride after aluminum. I dont know how much time you have on your chameleon, but I owned one for a bit, and it has got to be the stiffest, most bone jarring ride out there.
My vote sways toward the 29er, whichever is in your budget. By the way BLH2, you werent the guy at allaire I was riding with about a month ago, you snapped your chain on the heckler, had to walk out with your buddy?
walter