I was just in the process of making myself an amp rack, and some amp stands. What's your budget and what exactly where you looking for?
After chatting with Herbie of Herbie's Audio Lab, I was going to try a double deck of plywood or plywood top with MDF lower layer. Maybe even filling the aluminum legs with sand for even more damping.
I started glueing up a maple top for the very top of my rack last night in fact.

I'm sure I'll have some materials left over if you wanted to DIY your own amp stand. I'm making something along the lines of this, except with aluminum corners.