The current consumer level projectors are
Infocus X1 - 2x color vheel w/ DCDi, 800x600 ($8xx from dell deals that come up every now and then)
BenQ 6100 - 3x color wheel , 800x600 ($900 after rebate)
Optima H30 - 4x color wheel, 800x480 (I think there is a firmware update to unlock to 800x600) $1300)
Infocus 4805 - 4x color wheel w/ DCDi, 800x450 ($1500)
They are all DLP projector with very good contrast