Is Spiking Necesarry?

Kalai, If your basement ceiling is not finished, you could also reinforce it under your system to make the floor more robust in that area. Just a thought. 

Moving my speakers (Vandersteen Treo CTs) on their built-in spikes is difficult-to-dangerous by myself. I cut four pieces of 2 x 2 a bit longer than the speakers are wide , then slipped one under the front and one under the back of each speaker, as "skids." This lifts the spikes just clear of the floor and makes moving them quite a bit easier.

@john_g   What type of floor do you have your Treo CTs on?

Kalali, put a 2x2foot concrete paving slab from Home Depot under speakers.

I'll try the concrete slab idea and can put a few felt pads underneath to avoid scratching the wood floor. For now, I've put some isolation control pads - 3'x3' square 1' thick cork sandwiched between rubber, under the three ends of my 2Ci speaker metal stands and the bass is a little better controlled. Reinforcing the floor from basement ceiling is a good idea too. I'm guessing this is a common home construction style in northeast US or homes with a full basement.