4) On-Stage Stands
Here's a two-tier one:
http://www.guitarcenter.com/On-Stage-Stands-KS-7902-2-Tier-A-Frame-Keyboard-Stand-105327100-i1142214.gcVery similar to the Ultimate, but these have some grooves in the tubes that mate up with notches on the fittings to keep the tubes from slipping, as I've worried about with the Ultimate stands.
I've got some heavy keys on this one - Chroma Polaris on top, DX-5 in middle, and with supports on both front and rear legs, I've got a Synclavier VP/K (keyboard only - it's a friends and he doesn't have the Synclav computer to run it, so it's a nice, unfunctional piece of history. Clamed to have been uesd by Mick Jones of Foreigner!) It's rock solid even with all these keys on it.
I'll be getting another On-Stage next time I need a stand.