The best cabinet ia made by zero blast. They come with a turbine that sifts the dust from the good beads. They are quite fast don't leak. There is really no comparison. ZLook and wait until one come for sale. You won't regret it.
ZERO BLAST - BLAST CABINET & DUST COLLECTOR / SINGLE PAHSE | eBay
The above unit is a little smaller than mine. I waited and founr mine for $500 at an auction. It is so quite you can talk while blasyting. You can blast for hours. They do need a real compressor. Mine is a saylor beal 10hp with a 120 gallon tank
chris