I used the Herbie's Audio Lab Cone/Spike Decoupling Glider under my spiked speakers to protect the wooden floor in my room. Herbie's has a number of other products that might work under your stands to protect your wooden floor from spikes.
Also, I bought a rack from Timbernation and I am very happy with the appearance and worksmanship. You can see it in my system.
Also, I bought a rack from Timbernation and I am very happy with the appearance and worksmanship. You can see it in my system.