I assume your floors are very solid, or you would be complaining about footfall problems. If you can live with the cosmetics of the thing, I highly recommend the Target wall shelf, at about $150 or so. Really isolates the Linn and lets you experiment with various shelf materials very inexpensively. It comes with a plywood shelf, which works fine, but I much prefer Corian myself. You would be amazed how much the surface the Linn sits on affects the sound. Enjoy.
Linn Sondek Hype
So, it seems after reading a few threads there is something of a prejudice against the sondek. Well after now owning one I am not sure that it is warranted, to say it simply, I am in love. I mean wow, just plain old floored. Of course I also have Mcintosh equipment, so I am used to reading how horrible my stuff is. I am just wondering if the little table from Ikea is really a viable table for the Linn. I got a great deal on the Linn, but I am now broke, so cheap suggestions only.