I need a 2- teir desktop keyboard stand

I've been googling my ass off all morning. I know I've seen one. I'm 6'4", and my computer desk is simply too short, my hands get way too sore after playing my keys for a short while. If I have too, I'll set the dang thing on a cement block. However, I'd prefer a 2-tier stand, cuz I wanna get another keyboard soon. I've seen plenty of floor stands for 2 boards but I would run straight into it. I work standing up. Any ideas? Thanks a mil.

I have the Triple Tier version of this and an MX-400 stand for the MPC.
OnStage Stands are very sturdy!

http://www.guitarcenter.com/On-Stage-Stands-Deluxe-Heavy-Duty-X-2-Tier-Keyboard-Stand-450342-i1142011.gc

Thanks for the reply. Unfortunately, a floor stand will not work. I will knock it over. I need a desktop stand. I dunno. Looks like I might have to build it.

I have a QUIK LOK STAND I'M SELLING FOR $40 PLUS SHIPPING. Its in excellent condition. NJ 08021

Quik-Lok Two Tier Heavy Duty X Keyboard Stand

http://accessories.musiciansfriend.com/product/Quik-Lok-Two-Tier-Heavy-Duty-X-Keyboard-Stand?sku=710037