Get a Target Wall shelf. There are a couple different sizes and one has two shelves, one has one shelf. It will hold a heavy TT. I am using one to support a Classic 1 VPI clocking in at over 60 lbs plus a 12 lb maple isolation shelf. My four year old dances like crazy and it never skips a beat, and I placed it high enough she can't reach it. You can view my system pics to see how it looks set up. It isolates pretty well as it is bolted directly to the wall studs, bypassing the floor joists.
