I bought a Special-T ValuLift desk, at a local-to-me office furniture dealer for about $700. There were videos showing it can support alot of weight. It has been pretty good so far ... I have quite a bit on it, but probably not more than ~100 lbs. of 'stuff' on it.

Jim
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Genos / Tyros5 / HK Lucas Nano 600 / FTB Maxx 40a / EV ZX1A / Rock'n'Roller cart / Hauptwerk virtual pipe organ / misc other audio & music toys