It may be primarily aimed at the business user, but the Viewsonic PJD5352 DLP projector is capable of displaying 3D images from a variety of sources, as long as it's paired with active 3D DLP Link glasses.
Natively 4:3, this isn't really a home cinema product, nor does it come with a HDMI socket, but its 1024 x 768 XGA resolution (1280 x 1024 compressed) and 3000:1 dynamic contrast allows it to show HD video content fed through one of its D-sub (VGA) ports. And its 120Hz refresh rate makes it compatible with any 3D material, to boot.
It also sports an extremely short-throw lens, so a 60-inch image can be displayed from as little as 1 metre away. And, as it only weighs 4kg, it can be handily carried from work to home and back again.
The best news is that it is, for a hi-def projector, cheap as chips (DLP chips?), costing £600. Obviously the 3D specs will set you back another £50-£100, but it could be the least expensive way yet to join the 3D revolution.