For even less money and very effective is this http://www.harborfreight.com/13-gallon-industrial-portable-dust-collector-31810.html
one. I use one dedicated to my scroll saw along with a Thien style separator and find it very effective, a lot quieter than the 2 Hp model, draws half the current and if you remove the grates on the input and output ports works just about as well as the 2 Hp model. In fact I just bought another one today on sale and with the 20% coupon it cost me $103.00. That gives me 2 of the 1 Hp and 1 of the 2 Hp HF DC.