If you only ever play from the video card, you actually don;t need the HDMI 1.4a capability of the H5360, tho it is very convenient for use with blu-ray player or ps3.
It will work fine with PC and tmt5.
To play 3D from nivia card you need the 3dplay kit OR a software hack. Search for "enablestereo.bat" for details. You may have to use the 285.62 drivers and run the program each time before watching movies. one important thing is to go into nvidia control panel and delect the projector for 3d each time.
The $30 ebay DLP link glasses just fine. Check out the 3d forum here and read the old threads on glasses. Some have better range than others but i think you will be ok at 5m, some of the glasses worked farther.
After all that, the 5360 3D picture is beautiful and bright. Very nice. The only possible reason to wait would be the new 1080p coming out, but those would be more expensive, obviously.
It can be difficult to set up at teh beginning, but once you get it working it takes only 1 minute. If you have questions as in 3D forum. good luck.