I forgot to add, if you aren't using MV and you want two separate systems for UV and heat, have the uv and heat set up in one basking spot, and a uv tube running over the other tree too. Your cham won't get enough from basking if that is his/her only UV intake. They need about 12 hours under the tubes, b/c they give off a lot less than MV, or the outdoors. If you get your cham outside, or in direct sunlight through a screened window, for an hour or two a day, than I wouldn't worry about having the tubes anywhere but in the basking spot.
Hope that makes sense, lol.
I am a fan of MV. Less fixtures, chords, and bulbs. Plus, a lot more UV.