if I was going to spend 30k for a projection set up, i'd be buying two projectors and saving a lot of money.
there doesn't seem to be many sub 5k (or even 10k) projectors that can do it all really well. but there's plenty of sub 5k projectors that do one thing nearly the best of any price range.
for me, I don't care at all about 3d, but pretending I did, i'd buy a super bright DLP for 3d and pair it with a JVC for 2d. then again, the 3D I've seen on the x35 is bright enough and clear enough for me. it's not ghosting and a dim picture that stops me from watching 3D. it's the 3D itself that annoys me.
but i'm still looking at a two projector setup being the most practical for my needs. i'd use a business model LED/Laser projector to be my 'instant on', gaming, and watching basic TV solution to save the bulb life for the jvc. it's a lot cheaper than buying a LED projector capable of the same PQ the jvc can display.
Displays: Samsung PN64F8500/JVC X35
AVR: Pioneer VSX-1018AH, 5.1 audio
Sources: HTPC(Mediabrowser), PS3, XBOX360, Wii, Sony DVP-CX995V
Control: Harmony One