I just bought some amp stands as well. They don't come with spikes, but have a hole pre dilled to put some in, and they cost about 5% of what my amps did.
http://www.ikea-usa.com/product_presentation/subcat.asp?id=6395,472
Justin
http://www.ikea-usa.com/product_presentation/subcat.asp?id=6395,472
Justin